Merge "BluetoothHearingAid#getHiSyncId now consistently uses the term HiSyncId...

Merge "BluetoothHearingAid#getHiSyncId now consistently uses the term HiSyncId (removed all references to CustomerId) and added link to explain what the HiSyncId represents" into rvc-dev am: 8f8d351b

Change-Id: I57ee9cf25971d482534ad0e329831095e58e27e6