Check that RRTMG-P code fix for MT is compatible with MPAS.

[PeterHjortLauritzen]

What is the feature/what would you like to discuss?

Check that RRTMG-P code fix (https://github.com/ESCOMP/CAM/issues/1063) for MT is compatible with MPAS.

Suggested test:

https://github.com/ESCOMP/CAM/issues/1063#issuecomment-2248324329

Is there anyone in particular you want to be part of this conversation?

@adamrher @brianpm @JulioTBacmeister

Will this change (regression test) answers?

Yes

Will you be implementing this enhancement yourself?

No