Merge "Update BluetoothPbap class description to indicate how to create an instance of the class, add intdef to return value of BluetoothPbap#getConnectionState, and move all SystemApis to require the BLUETOOTH_PRIVILEGED permission" am: cc89e59203 am: 687ef90ac5 am: ccc1ad01e8

Change-Id: Ie7d5fb2def3e86d488150cc271e788e346f2ac76