[clang] [llvm] [NFC][HIP][SPIRV] Rework `-spirv-preserve-auxdata` handling. (PR #227875)

[Alex Voicu via llvm-commits]

AlexVlx wrote:

Oddly enough it appears that I cannot merge (at least not via GitHub): 
<img width="1640" height="392" alt="image" src="https://github.com/user-attachments/assets/b5179f65-6f25-408b-b575-796a4ccc0fc9" />
Is this a known issue perchance?

https://github.com/llvm/llvm-project/pull/227875