TIF: Change CEC specific names to more general ones

Now MHL device information is also a part of HdmiDeviceInfo (previously
HdmiCecDeviceInfo). This change adjusts method/variable names across our code
base to reflect that.

Bug: 16215362
Change-Id: I7a6692329f39842a4aec9a4ff036eca5474cfd33
8 files changed