[llvm] Reland "[TableGen][DecoderEmitter] Store HW mode ID instead of name (NFC) (#154052)" (PR #154212)

[Sergei Barannikov via llvm-commits]

s-barannikov wrote:

@dyung Thanks for the info. Do you happen to know why MacOS pre-merge checks are disabled? E.g.:

<img width="1015" height="81" alt="image" src="https://github.com/user-attachments/assets/a9809358-8236-4191-a5a5-6cd67c3118af" />


https://github.com/llvm/llvm-project/pull/154212