[llvm] [NFC][ARM] Split SIMD identifier away from MVE (PR #130296)

[Jack Styles via llvm-commits]

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@@ -61,6 +61,8 @@ enum ArchExtKind : uint64_t {
   AEK_CDECP6 = 1 << 28,
   AEK_CDECP7 = 1 << 29,
   AEK_PACBTI = 1 << 30,
+  AEK_MVE = 1ULL << 31,
+  AEK_MVEFP = 1ULL << 31,
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Stylie777 wrote:

No, and on reflection we only need one identifier here, as MVE.FP can be defined by having both MVE and FP.

https://github.com/llvm/llvm-project/pull/130296