Transitions - Add DOZING -> GONE

Recent changes remove the intermediate LOCKSCREEN state, which would
flicker when unlocking directly from DOZE state. The device is no
longer told to wake up when using FPS, so support a direct transition
between DOZING and GONE.

Fixes: 267156993
Test: atest KeyguardTransitionSCenariosTest
Change-Id: I72c43c93fed9c7dba43449977f541cb3e19210a7