Fix deadzone in seascape orientation

Test: Enable config_dead_zone_flash, make sure deadzone gets drawn
on the right side in seascape/landscape/portrait and deadzone is
consuming clicks on the right side.

Change-Id: Icc88967cfa7bf8ba7f6f3b797ca001eba78e5cdc
Fixes: 32870901
(cherry picked from commit 7aaa3d7d)