Trunk Stable/AdapterService: Use static flagging

DatabaseManager / ActiveDeviceManager / AudioRoutingManager have a weird
dependency of the flagging and are easier to modified all at once

Bug: 323981134
Bug: 308171251
Bug: 305799237
Bug: 305867804
Test: m Bluetooth | mechanical refactor
Change-Id: I32e79051b6e4f5ec75f137ca3bfb9d1e5dd27304