[llvm] [AMDGPU][InsertWaitCnts] Add test for global_wb/inv/wbinv tracking (PR #135339)

[Pierre van Houtryve via llvm-commits]

Pierre-vh wrote:

### Merge activity

* **Apr 22, 8:43 AM EDT**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/135339).


https://github.com/llvm/llvm-project/pull/135339