[llvm] [AMDGPU] Properly check op_sel in GCNDPPCombine (PR #79122)

[Joe Nash via llvm-commits]

https://github.com/Sisyph commented:

Overall looks great, thanks for fixing it so fast. I think it needs a test to reject formation when DST_OP_SEL is 1, but otherwise LGTM.

https://github.com/llvm/llvm-project/pull/79122