[production/RRFS.v1] parallel IO enhancements from GDIT

[MatthewPyle-NOAA]

Description

Provides the atmos_cubed_sphere changes needed to take advantage of FMS parallel IO changes. Changes courtesy of Dan Kokron of GDIT. Will be paired with changes in fv3atm.

Fixes # (issue)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also note
any relevant details for your test configuration (e.g. compiler, OS). Include
enough information so someone can reproduce your tests.

Checklist:

Please check all whether they apply or not

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

[jkbk2004]

@MatthewPyle-NOAA all tests are good at ufs-community/ufs-weather-model#2226. Feel free to approve and merge this pr.