EOF_500hPa atmosphere_hybrid_sigma_pressure_coordinate not defined in fieldlist_GFDL

[aradhakrishnanGFDL]

Bug Severity

• 1 = Minor problem that does not affect total framework functionality (e.g., computation error in a POD, problem with logging output, or an issue on a single system
  Describe the bug
  EOF POD trips on GFDL AM4 AMIP simulation due to the absence of atmosphere_hybrid_sigma_pressure_coordinate and depth/lev in fieldlist_GFDL.jsonc for GFDL_PP data manager options. This change in field list solves the issue. Thanks to Wenhao.
  Steps To Reproduce

For GFDL internal users, please follow the runscript
/nbhome/a1r/mdtf/MDTF-diagnostics/frepp-runscripts/mdtf_gfdl.am4.csh or provide any GFDL AM4/AMIP simulation as case root, convention GFDL and GFDL_PP data manager with and without the fieldlist fix to see the issue and resolution.
Environment
Describe the system environment:
Linux, GFDL analysis node
Log information and/or terminal output
Original error

GFDLMDTFFramework: initializing case 'c96L33_am4p0_cmip6Diag_test1'.

DEBUG: Set program for <#1tpW:c96L33_am4p0_cmip6Diag_test1.EOF_500hPa> to 'python'.
DEBUG: Copied value of Z slice (=500 hPa) of 'plev' (identical units).
DEBUG: Renaming 500 hPa Z slice of 'hght' to 'hght500'.
DEBUG: ExtractLevelFunction for <#1tEl:EOF_500hPa.zg>: add translated (geopotential_height) as alternate for (geopotential_height @ 500 hPa).
WARNING: Deactivated <#1tKl:EOF_500hPa.zg_hybrid_sigma> due to PodConfigEvent("Deactivating <#1tKl:EOF_500hPa.zg_hybrid_sigma> due to variable name translation: "Coordinate lev with standard name 'atmosphere_hybrid_sigma_pressure_coordinate' not defined in convention 'GFDL'.".").
Request for <#1tKl:EOF_500hPa.zg_hybrid_sigma> (='(not translated)' @ 1mo) failed; looking for alternate data.
ERROR: Deactivated <#1tpW:c96L33_am4p0_cmip6Diag_test1.EOF_500hPa> due to PodDataError("Requested data not available for POD <#1tpW:c96L33_am4p0_cmip6Diag_test1.EOF_500hPa>: No alternate data available for <#1tKl:EOF_500hPa.zg_hybrid_sigma>.").
ERROR: Deactivated <#1hEz:c96L33_am4p0_cmip6Diag_test1> due to ChildFailureEvent("Deactivating <#1hEz:c96L33_am4p0_cmip6Diag_test1> due to failure of all child objects.").
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