LeCallControl: define internal value... internally

LeCallControl will be deleted in incoming CLs, this CL facilitates usage
tracking to replace with proper internal call and not use the framework.
Bluetooth should not be calling Bluetooth framework like if it was a 3p
app

Bug: 380356012
Test: m Bluetooth
Flag: Exempt refactor
Change-Id: Icb83cee84139a47b9f27d3a8f97f70a01d45a23a