[llvm] [LLVM][NVPTX] Add support for griddepcontrol instruction (PR #123511)

[Li Min via llvm-commits]

limin2021 wrote:

Hi, could we also add python binding for this op? I want to use python nvvm op in cutlass python dsl, like below: `nvvm.griddepcontrol.wait()`

https://github.com/llvm/llvm-project/pull/123511