[compiler-rt] [llvm] [X86] Add CPU detection for more znver2 CPUs (PR #74955)

[Simon Pilgrim via llvm-commits]

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

LGTM - but please give @ganeshgit another chance to respond before committing in a couple of days 

https://github.com/llvm/llvm-project/pull/74955