Add FREETV, APP03, and APP04 buttons and adjust timing and LED expectations

* Add FREETV Button
* Rename DISNEY and HBOMAX buttons to APP03 and APP04
* Adjust timing of the BUG (Bugreport) button combination
* Return false earlier if the LED expectations are not met on pressing a
  button
* Simplify the operator LED feedback on button presses

Change-Id: I3ccaf5740d1a0ac5559ac2ec1e1632b0fa03369b
1 file changed