[llvm] [AArch64] Generalize integer FPR lane stores for all types (PR #134117)

[Paul Walker via llvm-commits]

================
@@ -221,6 +223,8 @@ Type *EVT::getTypeForEVT(LLVMContext &Context) const {
   case MVT::x86mmx:  return llvm::FixedVectorType::get(llvm::IntegerType::get(Context, 64), 1);
   case MVT::aarch64svcount:
     return TargetExtType::get(Context, "aarch64.svcount");
+  case MVT::aarch64mfp8:
+    return VectorType::get(IntegerType::get(Context, 8), ElementCount::getFixed(1));
----------------
paulwalker-arm wrote:

```suggestion
    return FixedVectorType::get(IntegerType::get(Context, 8), 1);
```

https://github.com/llvm/llvm-project/pull/134117