Update/Clean AM5 yamls for fre make

Is your feature request related to a problem? Please describe. The am5 yamls (model and compile) need to be updated as per updates in the am5 repo - https://gitlab.gfdl.noaa.gov/m5/am5xml/-/blob/main/xml_experiments/compile.xml?ref_type=heads

Yamls we are working with for fre make are here: https://github.com/NOAA-GFDL/fre-cli/tree/main/fre/make/tests/AM5_example

The yamls could also be cleaned up a little.

Describe the solution you'd like

[ ] Update the yamls and test to make sure it works with fre make code and compiles correctly.

As per Seth's suggestions:

[ ] make compiler -> compiler_family
[ ] branch -> rename to something like commit instead
[ ] cppdef -> rename to something like cppflags instead; also play around with arrays
[ ] clean any duplicate components/information
[ ] otherFlags -> rename to something like when it's usedin the fre make process; play around with arrays
[ ] baremetal -> rename to something like onprem
[ ] For platforms used: can look in local platforms.yaml first, but then globally set

Think of different systems and what users need (then generalize or be as specific when needed). In general, try to use terms that are used elsewhere too.

NOAA-GFDL / fre-cli

Update/Clean AM5 yamls for fre make #152