[clang] [compiler-rt] [llvm] [FMV][AArch64] Unify aes with pmull and sve2-aes with sve2-pmull128. (PR #111673)

[Tomas Matheson via cfe-commits]

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@@ -59,7 +59,7 @@ enum CPUFeatures {
   FEAT_SVE_F32MM,
   FEAT_SVE_F64MM,
   FEAT_SVE2,
-  FEAT_SVE_AES,
+  RESERVED_FEAT_SVE_AES, // previously used and now ABI legacy
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tmatheson-arm wrote:

It would be nice to have a more complete explanation of these reserved values somewhere in these files.

https://github.com/llvm/llvm-project/pull/111673