[llvm] [NFC][AMDGPU] Introduce SIInstrFlags predicates for TSFlag access (PR #201512)

[Krzysztof Drewniak via llvm-commits]

https://github.com/krzysz00 commented:

I'm going to assume that this is comprehensive and so here's a weak approve

https://github.com/llvm/llvm-project/pull/201512