[clang] [llvm] [AArch64] Add __hvc and __svc MS intrinsics (PR #202582)

[Adhemerval Zanella via cfe-commits]

zatrazz wrote:

> Please update the commit message (the initial comment on the pull request).

Done, thanks for following up on this.

https://github.com/llvm/llvm-project/pull/202582