[llvm] AMDGPU: Ensure both wavesize features are not set (PR #159234)

[Jay Foad via llvm-commits]

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@@ -1232,6 +1232,19 @@ def FeatureSetPrioIncWgInst : SubtargetFeature<"setprio-inc-wg-inst",
 // Subtarget Features (options and debugging)
 //===------------------------------------------------------------===//
 
+// Ugly hack to accomodate an assembling modules with mixed
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jayfoad wrote:

```suggestion
// Ugly hack to accomodate assembling modules with mixed
```

https://github.com/llvm/llvm-project/pull/159234