Fix fields indentified with TR8_enhanced in the atmos_phys repo

[cacraigucar]

What happened?

• Uncomment out the two sections in TR8_enhanced which run it on atmos_phys
• Address the issues it finds, and bring in the new atmos_phys tag

What are the steps to reproduce the bug?

Uncomment the atmos_phys sectioni in TR8_enhanced.sh

What CAM tag were you using?

cam6_4_198

What machine were you running CAM on?

CISL machine (e.g. derecho)

What compiler were you using?

Intel

Path to a case directory, if applicable

No response

Will you be addressing this bug yourself?

Yes

Extra info

No response