[lldb] Silence warnings about unused static variables in RegisterInfos_arm64.h

[mstorsjo]

Summary

Move them to the only source file that included RegisterInfos_arm64.h
that actually used these variables.

This silences warnings like these:

In file included from lldb/source/Plugins/Instruction/ARM64/EmulateInstructionARM64.cpp:42:
lldb/source/Plugins/Process/Utility/RegisterInfos_arm64.h:790:35: warning: ‘g_register_infos_mte’ defined but not used [-Wunused-variable]
  790 | static lldb_private::RegisterInfo g_register_infos_mte[] = {
      |                                   ^~~~~~~~~~~~~~~~~~~~
lldb/source/Plugins/Process/Utility/RegisterInfos_arm64.h:787:35: warning: ‘g_register_infos_pauth’ defined but not used [-Wunused-variable]
  787 | static lldb_private::RegisterInfo g_register_infos_pauth[] = {
      |                                   ^~~~~~~~~~~~~~~~~~~~~~

lldb/source/Plugins/Process/Utility/RegisterInfoPOSIX_arm64.cpp

#define REG_CONTEXT_SIZE                                                       \
    sizeof(RegisterInfoPOSIX_arm64::EXC))
 
 // Include RegisterInfos_arm64 to declare our g_register_infos_arm64 structure.
 #define DECLARE_REGISTER_INFOS_ARM64_STRUCT
 #include "RegisterInfos_arm64.h"
 #include "RegisterInfos_arm64_sve.h"
 #undef DECLARE_REGISTER_INFOS_ARM64_STRUCT
 
+static lldb_private::RegisterInfo g_register_infos_pauth[] = {
+    DEFINE_EXTENSION_REG(data_mask), DEFINE_EXTENSION_REG(code_mask)};
+
+static lldb_private::RegisterInfo g_register_infos_mte[] = {
+    DEFINE_EXTENSION_REG(mte_ctrl)};
+
 // Number of register sets provided by this context.
 enum {
   k_num_gpr_registers = gpr_w28 - gpr_x0 + 1,
   k_num_fpr_registers = fpu_fpcr - fpu_v0 + 1,
   k_num_sve_registers = sve_ffr - sve_vg + 1,
   k_num_mte_register = 1,
   k_num_pauth_register = 2,
   k_num_register_sets_default = 2,

lldb/source/Plugins/Process/Utility/RegisterInfos_arm64.h

static lldb_private::RegisterInfo g_register_infos_arm64_le[] = {
     {DEFINE_DBG(wcr, 10)},
     {DEFINE_DBG(wcr, 11)},
     {DEFINE_DBG(wcr, 12)},
     {DEFINE_DBG(wcr, 13)},
     {DEFINE_DBG(wcr, 14)},
     {DEFINE_DBG(wcr, 15)}
 };
 // clang-format on
-static lldb_private::RegisterInfo g_register_infos_pauth[] = {
-    DEFINE_EXTENSION_REG(data_mask), DEFINE_EXTENSION_REG(code_mask)};
-
-static lldb_private::RegisterInfo g_register_infos_mte[] = {
-    DEFINE_EXTENSION_REG(mte_ctrl)};
 
 #endif // DECLARE_REGISTER_INFOS_ARM64_STRUCT