[llvm] [AMDGPU] si-peephole-sdwa: Fix cndmask vcc use for wave32 (PR #139541)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,40 @@
+; RUN: llc %s -march=amdgcn -mcpu=gfx1030 -o - 2>&1 | FileCheck %s
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arsenm wrote:

```suggestion
; RUN: llc -march=amdgcn -mcpu=gfx1030 < %s | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/139541