[llvm] [AMDGPU] Fix typo in v_dot4 combine (PR #115224)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,116 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 --start-before=amdgpu-isel -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX11 %s
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arsenm wrote:

```suggestion
; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 --start-before=amdgpu-isel < %s | FileCheck -check-prefixes=GFX11 %s
```

https://github.com/llvm/llvm-project/pull/115224