[llvm] [AMDGPU][VOPD] Limit VOPDPairing from reaching over load dependencies (PR #201930)

[Igor Wodiany via llvm-commits]

https://github.com/IgWod approved this pull request.

I'm going to test the impact of this change internally, but I don't see it to be a reason to block this PR from going in. I didn't look at the code in much detail so this approval is just for a compile time concern.

https://github.com/llvm/llvm-project/pull/201930