AudioPolicy: manage volume per group ID

To be aligned with latest AudioManager API that migrated
the volume control from attributes to group id, this CL propagates
this change the the whole audio stack.

Bug: 270049944
Test: atest AudioManagerTest
Flag: android.media.audiopolicy.volume_group_management_update

Change-Id: Ia7e32f79c9ad0482eab4c2e7361f4e7d16886e08
Signed-off-by: François Gaffie <francois.gaffie@renault.com>