Hopefully this will reduce the number of OTA "bugs" reported that are
really just someone having changed their system partition,
invalidating future incremental OTAs.
Also fixes a longstanding TODO about putting LOGE() output in the
on-screen display.
Change-Id: I44e5be65b2dee7ebce2cce28ccd920dc3d6e522e
Move the key for handling keys from ScreenRecoveryUI to RecoveryUI, so
it can be used by devices without screens. Remove the UIParameters
struct and replace it with some new member variables in
ScreenRecoveryUI.
Change-Id: I70094ecbc4acbf76ce44d5b5ec2036c36bdc3414
Replace the device-specific functions with a class. Move some of the
key handling (for log visibility toggling and rebooting) into the UI
class. Fix up the key handling so there is less crosstalk between the
immediate keys and the queued keys (an increasing annoyance on
button-limited devices).
Change-Id: I698f6fd21c67a1e55429312a0484b6c393cad46f