Update scrim controller directly with occlude animation status.

updateIsKeyguard() short circuits in some cases which was preventing
the scrim state from updating after the occlude animation ends. This
fixes that by delivering the occlusion animation status directly
(similar to clipsQsScrim and other params in ScrimController) and
updating the scrims.

Fixes: 258700577
Test: launch camera in both light and dark mode
Test: pull down shade before/after launch to confirm notif scrim is not stuck
Change-Id: Ib3762df8d51f9347c56347cc235b8c97637991c0