[clang] [Clang][Sema][OpenMP] Allow `num_teams` to accept multiple expressions (PR #99732)

[Alexey Bataev via cfe-commits]

alexey-bataev wrote:

> > Update OpenMPSupport.rst and include info about changes to release notes
> 
> This is not part of OpenMP standard so I don't think we need to update `OpenMPSupport.rst`.

We do not inform OpenMP committee here, just users :) For users it would be good to have this info

https://github.com/llvm/llvm-project/pull/99732