[llvm] [AMDGPU][ASAN] Handle special GVs lowering in amdgpu-sw-lower-lds (PR #161827)

[Sameer Sahasrabuddhe via llvm-commits]

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

Unblocking this work since I previously marked it as "changes requested". I don't believe that work on asan should be blocked on discussions happening elsewhere.

https://github.com/llvm/llvm-project/pull/161827