Register diagnostics from stochastic physics only if allocated, fix duplicate symbols error on macOS; ccpp-physics: cleanup CCPP cmake flags part 1; contains "fix the number of 2d fields nsfcprop2d" (#419)

[climbfuji]

Description

This PR:

• Fixes a bug inGFS_diagnostics.F90 that registered several stochastic variables as diagnostic output even though th arrays are not allocated if the corresponding stochastic option is turned off
• Fixes a problem that led to a "duplicate symbols" error on macOS with Intel by removing files from ccpp/CMakeLists.txt that get added automatically by CCPP
• Updates the submodule pointer for ccpp-physics for the changes described in Cleanup CCPP cmake flags part 1, remove extra logic that reduces optimization for radiation_aerosols.f, update CODEOWNERS, update README.md NCAR/ccpp-physics#773
• Contains the changes in fix the number of 2d fields nsfcprop2d #419 from @HelinWei-NOAA
• Updates the submodule pointer for GFDL_atmos_cubed_sphere to include latest JEDI control changes (contributed by @mark-a-potts)

Issue(s) addressed

Fixes ufs-community/ufs-weather-model#895
Fixes #418 (thanks, @HelinWei-NOAA)

Dependencies

• waiting on Cleanup CCPP cmake flags part 1, remove extra logic that reduces optimization for radiation_aerosols.f, update CODEOWNERS, update README.md NCAR/ccpp-physics#773

Testing

See ufs-community/ufs-weather-model#897

[climbfuji]

Updated submodule pointer for ccpp-physics is correct (b8b7c31). This PR is ready to merge.