Dismiss keyguard if pulsing unlocked

BouncerExpansionCallback#onFullyShown will never be called when unlocked
because we collapse the shade without showing the PIN pad.
We need some special logic to make sure that the device will wake-up.

Test: swipe up from pulse when locked
Test: swipe up from pulse when unlocked
Fixes: 129315800
Change-Id: I740e598b180ad7aeb5b023a5984942b89ae1df5f