Add the state machine for overlay configuration. When connected,
check whether the TV on HDMI is 3D capable or not using the EDID
info. Show L channel on primary panel; and R channel on 2D TV if
non 3DTV is connected via HDMI, else switch TV to 3D mode.
Change-Id: I3109f8b0b81a8f5ad542db038262fd668e225e96