[llvm] [AMDGPU][NFC] Remove duplicate code by using getAddressableLocalMemor… (PR #104604)

[Jay Foad via llvm-commits]

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

LGTM but please clean up the commit message to get rid of the stupid "…"s that github inserted.

https://github.com/llvm/llvm-project/pull/104604