Fix issue #5433192 and maybe #5433192

5433192: Factory reset device: compatibility screen is the first...
...screen before setup wizard

Don't show compat mode dialog if compat mode is unknown (which happens
early in boot before an activity is shown for example).  Also make sure
to update status any time the current focus app token changes, so we
correctly update every time switching apps.

5651152 [Stingray] change zoom/strech setting icon won't go away

This is probably also fixed by updating when the app token changes.

Change-Id: Ibe9bd6277166230d5d96689741b78325ea099d57