[llvm] [AMDGPU] Run AMDGPULowerVGPREncoding before hazard recognizers. NFCI. (PR #184987)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

Should include test with codegen change where a hazard was introduced? 

https://github.com/llvm/llvm-project/pull/184987