Update btm battery controls to charge from fuelcell for fuel cell hybrids

[mjprilliman]

Description

-Update callback to check for fuel cell hybrid configs for BTM battery charging from fuelcell
-See additional questions on #1560 to determine additional scope of this issue

Fixes #1560

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist:

If you have added a new compute module in a SSC pull request related to this one, be sure to check the Process Requirements.

• 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
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[cpaulgilman]

Seems to work correctly now. Thanks!