Display: add config_cv_available

Added `config_cv_available` bool framework res config
that will indicate whether the CV feature is available or not. Mostly, it will indicate if the user has a CV feature UI or not.

Flag: EXEMPT config resources
Test: verified that it may be checked by applications
Bug: 390644464

Change-Id: I4ba651f155ba2ac2bec2489362fcb890dceef683