Merge changes I8197a919,I61b0398c,Id0d1d4ba,Ibf9d162e,I01058504, ...
* changes:
Fix NPE when Audio System is not registered.
Fix service thread crash in HdmiControlService getActiveSource
Fix NPE in HdmiControlService
Send out <Set Stream Path> regardless of the port the remote device is connected to
Change the restriction on sending out <Standby> command
Fix NPE in HdmiControlService when set routing control on Unregistered device.
Fix switching back home on OneTouchPlay.
Make getActiveSource in HdmiControlService work for non-TV device.
Fix feature abort command handlers.
Keep the device info when power status/OSD is unknown.