[llvm] [NFC][OpenMP] Update a test that was failing on aarch64. (PR #164456)

[Abhinav Gaba via llvm-commits]

abhinavgaba wrote:

Thanks for helping with the experiments! I relaxed the check for now.

If the issues continue affecting the test even after the codegen fix, we might have to debug further.

Thanks again for your help and patience :)

https://github.com/llvm/llvm-project/pull/164456