[clang] [TargetVersion] Only enable on RISC-V and AArch64 (PR #115991)

[Craig Topper via cfe-commits]

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@@ -3040,6 +3040,7 @@ bool Sema::checkTargetVersionAttr(SourceLocation LiteralLoc, Decl *D,
   enum FirstParam { Unsupported };
   enum SecondParam { None };
   enum ThirdParam { Target, TargetClones, TargetVersion };
+
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topperc wrote:

Drop this change?

https://github.com/llvm/llvm-project/pull/115991