On disable send the disable event to stack right away, as the stack will take...

On disable send the disable event to stack right away, as the stack will take care of tearing down the active connections. ALL_DEVICES_DISCONNECTED was not being sent (as no profiles handled it), causing 3 second delay on BT off

Change-Id: I8aa83f3cd2019f521d5522e9455303a413dddcc1