[llvm] [openmp] [openmp][wasm] Allow compiling OpenMP to WebAssembly (PR #71297)

[Shilei Tian via llvm-commits]

https://github.com/shiltian commented:

We will also want (have) to disable certain features such as OMPD and OMPT for WASM.

https://github.com/llvm/llvm-project/pull/71297