Bluetooth: SAP: Add framework changes to support SAP

This change consists of:
SAP Disconnect from server support related changes

Change-Id: I7215f503244c5ee277e83d60d6960f18559acfb9
AudioService : Fix NPE

Initialize mVolumePanel prior to registering the receiver,
since 4.3 now invokes the layoutDirection call on it.

Change-Id: I8d00f0886b603d52bc55cba5fd3ba1d86f7ea56c
Merge "AudioService : Fix NPE" into cm-10.2
Merge branch 'cm-10.2' of git://github.com/CyanogenMod/android_frameworks_base into cm-10.2