Modify input points to register in correct swipe touch regions

While the recents task list is frozen, launcher
will continue to listen for touch regions in
all orientations of apps it has seen while frozen.
Ex. Start w/ portrait app, then quick switch to
90-deg landscape app, touches in the navbars of both
those orientations will be treated as valid.
Once the task list unfreezes, only the orientation
that is currently displayed will have a valid navbar
touch region

fixes: 140116135
Test: tested manually in all 4 orientations with
quickswitch, swipe to recents and swipe to home
Attempted to write unit tests, but only basic ones
since there are some limitations on the MotionEvent
API for mocking

Change-Id: I8d3751571a939497b44e0dd249a0248299ba5ceb