[llvm] [AMDGPU][GlobalISel] Make `selectVOP3PMadMixModsImpl` same as the SelectionDAG counterpart (PR #110168)

[Shilei Tian via llvm-commits]

shiltian wrote:

I understand that this seems to revert some optimization, so I'm happy to hear about better approaches.

https://github.com/llvm/llvm-project/pull/110168