bass: Clean up logging for service

Motivation for this CL is a better readibility for debugging the Service
and connected modules. There is a lot of duplicated information along
different modules, lack of white spaces, too much not important logs
etc.

Tag: #feature
Bug: 286598970
Test: atest packages/modules/Bluetooth/android/app/tests/unit/src/com/android/bluetooth/bass_client
Change-Id: I06f3b34881aff560afeee6a0891163b4fb8ce5ee