[llvm] [openmp][nfc] Use clang gpuintrin for some dispatch to target intrinsics (PR #131907)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

I already match a PR for this https://github.com/llvm/llvm-project/pull/131631 and https://github.com/llvm/llvm-project/pull/131644.

https://github.com/llvm/llvm-project/pull/131907