[clang] [compiler-rt] [llvm] [X86] AMD Zen 5 Initial enablement (PR #107964)

[Simon Pilgrim via cfe-commits]

RKSimon wrote:

It would be messy, but could we not place the CK_ZNVER5 enum entry at the end of the enum list just for 19.x and then fix the sorting in trunk?

https://github.com/llvm/llvm-project/pull/107964