[libc][docs] Update implementation status table for Date and Time Functions.

[lntue]

Summary

Update implementation status table for Date and Time Functions to include different targets.

[lntue]

Fix copy-paste errors.

libc/docs/date_and_time.rst

 =======================
 Date and Time Functions
 =======================
 
 .. include:: check.rst
 
 ---------------
 Source location
 ---------------
 
 -   The main source for time functions is located at: ``libc/src/time``
 
 ---------------------
 Implementation Status
 ---------------------
 
-============= =======
-Function_Name C99
-============= =======
-clock
-mktime        |check|
-time
-asctime       |check|
-ctime
-gmtime        |check|
-localtime
-strftime
-============= =======
-
-===================   =======
-Function_Name         POSIX
-===================   =======
-asctime               |check|
-asctime_r             |check|
-clock
-clock_getcpuclockid
-clock_getres
-clock_gettime         |check|
-clock_nanosleep
-clock_settime
-ctime
-ctime_r
-difftime              |check|
-getdate
-gettimeofday          |check|
-gmtime                |check|
-gmtime_r              |check|
-localtime
-localtime_r
-mktime                |check|
-nanosleep             |check|
-strftime
-strptime
-time
-timer_create
-timer_delete
-timer_gettime
-timer_getoverrun
-timer_settime
-tzset
-===================   =======
+* To check date and time functions enabled for Linux:
 
+  - `linux-x86_64 <https://github.com/llvm/llvm-project/tree/main/libc/config/linux/x86_64/entrypoints.txt>`_
+
+  - `linux-aarch64 <https://github.com/llvm/llvm-project/tree/main/libc/config/linux/aarch64/entrypoints.txt>`_
+
+  - `linux-aarch32 <https://github.com/llvm/llvm-project/tree/main/libc/config/linux/arm/entrypoints.txt>`_
+
+  - `linux-riscv64 <https://github.com/llvm/llvm-project/tree/main/libc/config/linux/riscv64/entrypoints.txt>`_
+
+* To check date and time functions enabled for Windows:
+
+  - `windows-x86_64 <https://github.com/llvm/llvm-project/tree/main/libc/config/windows/entrypoints.txt>`_ 
+
+  - windows-aarch64 - to be added
+
+* To check date and time functions enabled for macOS:
+
+  - `darwin-x86_64 <https://github.com/llvm/llvm-project/tree/main/libc/config/darwin/x86_64/entrypoints.txt>`_
+
+  - `darwin-aarch64 <https://github.com/llvm/llvm-project/tree/main/libc/config/darwin/arm/entrypoints.txt>`_
+
+* To check date and time functions enabled for GPU:
+
+  - `gpu-entrypoints <https://github.com/llvm/llvm-project/tree/main/libc/config/gpu/entrypoints.txt>`_ 
+
+* To check date and time functions enabled for embedded system:
+
+  - `barebone-aarch32 <https://github.com/llvm/llvm-project/tree/main/libc/config/baremetal/arm/entrypoints.txt>`_ 
+
+  - barebone-riscv32 - to be added
+
++---------------------+---------------------------------------+-------------------+-------------------+-------------------+-------------------+
+| <Func>              |  Linux                                | Windows           | MacOS             | Embedded          | GPU               |
+|                     +---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+|                     | x86_64  | aarch64 | aarch32 | riscv64 | x86_64  | aarch64 | x86_64  | aarch64 | aarch32 | riscv32 | AMD     | nVidia  |
++=====================+=========+=========+=========+=========+=========+=========+=========+=========+=========+=========+=========+=========+
+| asctime             | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| asctime_r           | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| clock               | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| clock_getcpuclockid |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| clock_getres        |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| clock_gettime       | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| clock_nanosleep     |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| clock_settime       |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| ctime               |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| ctime_r             |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| difftime            | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| getdate             |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| gettimeofday        | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| gmtime              | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| gmtime_r            | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| localtime           |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| localtime_r         |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| mktime              | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| nanosleep           | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| strftime            |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| strptime            |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| time                | |check| | |check| |         | |check| |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| timer_create        |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| timer_delete        |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| timer_gettime       |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| timer_getoverrun    |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| timer_settime       |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
+| tzset               |         |         |         |         |         |         |         |         |         |         |         |         |
++---------------------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+