Sixth reconciliation PR from production/RRFS.v1

[grantfirl]

Description

This PR is identical to NOAA-EMC#89 from @MatthewPyle-NOAA

Provides the atmos_cubed_sphere changes needed to take advantage of FMS parallel IO changes. Changes courtesy of Dan Kokron of GDIT.

Fixes # (issue)

How Has This Been Tested?

UFS WM regression tests on Hera using full rt.conf file.

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

[bensonr]

lgtm

[grantfirl]

@bensonr @XiaqiongZhou-NOAA You may want to re-review. I made one small change to turn ENABLE_PARALLELRESTART to OFF by default in CMakeLists.txt since turning it on caused UFS WM RT failures on some platforms. Turning this feature off by default was deemed a good temporary solution to get the functionality merged into develop for platforms that need it and use it, although they'll need to make sure to turn it on in their workflows somehow and not rely on the default behavior to do it for them. See NOAA-EMC/fv3atm#896 for discussion.