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.