Merge changes Idebffbec,Ief4435c7,I9f9a5f46,Iee495e71,I949587e1, ...

* changes:
  Add Power Status query steps in Device Discovery Action.
  Unmute when turning system audio mode on.
  Make sure the device route to HOME when OneTouchPlay is triggered.
  Add APIs to expose some cec control to other services.
  Fix port id mismatch temporarily.
  Add dump info of local active port and routing port.
  Set routing feature enabled to default false and dump its status.
  Add a thread safe copy of connected device list.