Test: m droid
Bug: 312769710
Change-Id: I44c02edb99f57389e4407891248ee254309e1e9e

Flag to control the code path when both a2dp source
and sink profiles are enabled concurrently.

Bug: 321806163
Bug: 315241296
Test: m (launch raven_car-trunk-userdebug)
Change-Id: Ic2764d7196f36608a768f604f447218b80a7607b

Bug: 308686081
Bug: 305734815
Test: m Bluetooth
Change-Id: I2bb15e70804f3089c6da3f84e64c7a37a209ef0f