[llvm] [SPIRV] Fix for the SPV_KHR_non_semantic_info (PR #178373)

[Manuel Carrasco via llvm-commits]

mgcarrasco wrote:

I've checked and the failing tests are unrelated to the PR:
```
  LLVM :: CodeGen/SPIRV/event-zero-const.ll
  LLVM :: CodeGen/SPIRV/transcoding/OpGroupAsyncCopy-strided.ll
  LLVM :: CodeGen/SPIRV/transcoding/spirv-event-null.ll
```

https://github.com/llvm/llvm-project/pull/178373