Added remote display support

If one of the logical screens (e.g. Android auto, wifi display,
HDMI display, wifi display, etc...) is on, then behave like
the main screen is on. This will ehnance the user experience on
Android auto or Chromcasting from the phone.

Test: Telephony sanity tests
bug: 20125037
Change-Id: I3ecf9d4504a50eac5cbe2cb22b512953cb78a7f7