GPay activity can use passive biometric auth

- User can face authenticate immediately after tapping the gpay icon on
the LS
- User can use rear fp sensor to authenticate while the GPay activity
from LS is showing
- Update udfps bouncer logic so that longpress on a notification works
with udfps
- Never listen for UDFPS on the keyguard if the device already has trust

Test: atest SystemUITests
Test: atest KeyguardUpdateMonitorTest
Test: manual (unlock with and withou biometric on notification, shade,
bouncer, gpay surfaces)
Fixes: 187020022
Fixes: 183112863
Bug: 183024921
Bug: 185433347

Change-Id: I47aa58505535267c56b88c021791066c36a6c717