[llvm] [AMDGPU] Add OMOD folding for TRANS bfloat16 instructions (PR #208595)

[via llvm-commits]

https://github.com/ambergorzynski commented:

We have been doing some code coverage analysis on open PRs and found a couple lines here that are not covered by your test, nor by any existing lit tests. Flagging them in case you could add test cases to ensure they're all covered.

https://github.com/llvm/llvm-project/pull/208595