[clang] [llvm] [mlir] [AMDGPU] add clamp immediate operand to WMMA iu8 intrinsic (PR #171069)

[Shilei Tian via llvm-commits]

https://github.com/shiltian commented:

The LLVM changes look good to me.

https://github.com/llvm/llvm-project/pull/171069