PIN bouncer - basic landscape support

As with Android 11, there are specific scenarios where the bouncer can
be shown in landscape position. The UX updates for Android 12 made
this completely unusable. Return the PIN bouncer to a functional
state. There is still outstanding work to fully support landscape for
keyguard.

Fixes: 185735801
Test: manual (use camera over ls, rotate, hit unlock)
Change-Id: I3090afe1534cfa2b01bd35b91e1e273858117743