Fix for driver-config validation in combination with keypath

[maddenp-cu]

Synopsis

Update to Assets to retain config_intermediate as self._config_intermediate and to use it for validation, which works with key_path.

Type

• Bug fix (corrects a known issue)

Impact

• This is a non-breaking change (existing functionality continues to work as expected)

Checklist

• I have added myself and any co-authors to the PR's Assignees list.
• I have reviewed the documentation and have made any updates necessitated by this change.

[christinaholtNOAA]

Thanks for the quick response!