Reset the dismiss action on keyguard reset

This resets the dismiss action and informs the
dismissCallbacks of the dismiss cancellation
when the device goes to sleep.

Test: atest StatusBarKeyguardViewManagerTest AlternateBouncerViewModelTest
Test: Enroll UDFPS or SFPS, tap on a notification on the lockscreen
with an intent, observe the alternate bouncer, tap on the alternate
bouncer to show the primary bouncer; enter pin/pattern/password,
observe that the intent triggers
Fixes: 351712715
Flag: EXEMPT bugfix
Change-Id: Ia1c7cfe4ad357c265ccb68250c538e9cd3d0321b