[llvm] [AMDGPU][GlobalISel] Update tests to check for COV5 (PR #76257)

[Matt Arsenault via llvm-commits]

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

LGTM, but the IR changes to add the module flag should be dropped after the default is switched 

https://github.com/llvm/llvm-project/pull/76257