[llvm] [NVPTX] Add Volta Atomic SequentiallyConsistent Load and Store Operations (PR #98551)

[via llvm-commits]

gonzalobg wrote:

Have rebased this on top of https://github.com/llvm/llvm-project/pull/99649 . This is now a simpler change.

https://github.com/llvm/llvm-project/pull/98551