In order to prevent misalignement between hard-coded stream aliases, this CL allows to use the Volume Group cb to update the SeekBarVolume. The ultimate step would be to remove stream aliases from audioserver. Bug: 124767636 Test: dumpsys media.audio_policy Change-Id: Ide99e9dd97669e880d0d253102533c72070012a1 Signed-off-by: François Gaffie <francois.gaffie@renault.com>