Update lockscreenAlpha depending on DozeTransitionFlows

<KeyguardState>ToDozingTransitionViewModels now rely on
DozingTransitionFlows for lockscreenAlpha. Now, lockscreenAlpha
updates based on the DozeTransitionModel state (ie:
DOZE vs PULSING).

This CL also:
 - Moves the device wakeup to _after_ biometric
 unlock events are sent to consumers. This is to avoid
 waking up before a biometric wakeup gets to control
 the DOZING/AOD => LOCKSCREEN/BOUNCER/GONE animation.

 - Always wakes and unlocks from pulsing instead of
 WAKE_ONLY for non-bypass face auth. Currently face auth
 will only run if the user interacts with the fp sensor
 while pulsing, so we can always wake and unlock. This will
 trigger a DOZING => GONE transition instead of DOZING => LOCKSCREEN.
 To test this, intentionally tap UDFPS too quickly from screen off;
 succeed non-bypass face auth; observe transition to GONE instead
 of LOCKSCREEN.

Test: atest DozingTransitionFlowsTest
Test: enroll UDFPS; enable Screen-off Fingerprint Unlock;
succeed UDFPS from screen off and failed UDFPS from screen off;
observe transitions & expected UI
Flag: com.android.systemui.new_dozing_keyguard_states
Bug: 415704030

Change-Id: I27f3ec82cc127c7597c22bb4b1f1a73d06a643bd