[clang] [flang] [llvm] [AMDGPU] Add "lds-buffer-load-insts" attribute for all targets < gfx11 (PR #133055)

[Juan Manuel Martinez Caamaño via llvm-commits]

jmmartinez wrote:

Squashed first commit from https://github.com/llvm/llvm-project/pull/132048

https://github.com/llvm/llvm-project/pull/133055