[llvm] [AArch64][SME] Various tests should work with +sme, just as they do for +sve (PR #65260)

[Matthew Devereau via llvm-commits]

================
@@ -6202,7 +6202,7 @@ bool AArch64TargetLowering::useSVEForFixedLengthVectorVT(
 
   // All SVE implementations support NEON sized vectors.
----------------
MDevereau wrote:

```suggestion
  // All SVE/SME implementations support NEON sized vectors.
```

https://github.com/llvm/llvm-project/pull/65260