[llvm] [LLVM][AARCH64]Replace +sme2p1+smef16f16 by +smef16f16 (PR #88860)

[Momchil Velikov via llvm-commits]

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@@ -554,7 +554,7 @@ def FeatureSME_LUTv2 : SubtargetFeature<"sme-lutv2", "HasSME_LUTv2", "true",
   "Enable Scalable Matrix Extension (SME) LUTv2 instructions (FEAT_SME_LUTv2)">;
 
 def FeatureSMEF8F16 : SubtargetFeature<"sme-f8f16", "HasSMEF8F16", "true",
-  "Enable Scalable Matrix Extension (SME) F8F16 instructions(FEAT_SME_F8F16)", [FeatureSME2, FeatureFP8]>;
+  "Enable Scalable Matrix Extension (SME) F8F16 instructions(FEAT_SME_F8F16)", [FeatureSME2, FeatureFP8, FeatureSMEF16F16]>;
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momchil-velikov wrote:

The description of `FeatureSMEF16F16` still says
> "Enable SME2.1 non-widening Float16 instructions (FEAT_SME_F16F16)"

https://github.com/llvm/llvm-project/pull/88860