[llvm] [LLVM][NVPTX] Add NVPTX codegen support for fence.proxy.tensormap (PR #100748)

[Pradeep Kumar via llvm-commits]

schwarzschild-radius wrote:

@Artem-B I have addressed all of your comments, please take a look when you get a chance

https://github.com/llvm/llvm-project/pull/100748