[clang] [compiler-rt] [lldb] [llvm] Add ARMv8-M and ARMv8.1-M support for Darwin (PR #195184)

[Steven Wu via cfe-commits]

cachemeifyoucan wrote:

This breaks arm64 macOS bot: https://green.lab.llvm.org/job/llvm.org/job/clang-stage1-RA-as/job/main/1571/

https://github.com/llvm/llvm-project/pull/195184