[llvm-branch-commits] [llvm] [AArch64][llvm] Remove FeatureMPAM guards for parity with gcc (PR #163166)

[via llvm-branch-commits]

https://github.com/CarolineConcatto approved this pull request.

LGTM, 
I've checked that with GCC and I can see that GCC indeed does not guard these system registers:
https://godbolt.org/z/rn7reEEz6

https://github.com/llvm/llvm-project/pull/163166