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[lldb] [Process/FreeBSD] Introduce aarch64 hw break/watchpoint support

Authored by mgorny on Feb 9 2021, 12:10 PM.

Description

[lldb] [Process/FreeBSD] Introduce aarch64 hw break/watchpoint support

Split out the common base of Linux hardware breakpoint/watchpoint
support for AArch64 into a Utility class, and use it to implement
the matching support on FreeBSD.

Differential Revision: https://reviews.llvm.org/D96548