[clang] [mlir] [llvm] [AMDGPU] - Add address space for strided buffers (PR #74471)

[Nicolai Hähnle via llvm-commits]

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

FWIW, this LGTM. Give it another day or two for other feedback.

https://github.com/llvm/llvm-project/pull/74471