[llvm] [TableGen] Introduce a less aggressive suppression for HwMode Decoder… (PR #86060)

[Jason Eckhardt via llvm-commits]

nvjle wrote:

> Perhaps I should use the '@'. I couldn’t add reviewers, so I’m not sure if my previous message notified you~ @nvjle @kparzysz

Hi @superZWT123,
I just saw this PR now that you added the `@`. Until you have github commit access, you won't be able to use the ordinary `Reviewers` pull down menu yet. I will re-review this iteration of the patch soon.  

https://github.com/llvm/llvm-project/pull/86060