Face interrupt polish

Let's try to authenticate more often, especifically when the user
pulls down quick settings.

Transient messages on the keyguard also be cleared if there's a
new authentication attempt.

Fixes: 128034459
Fixes: 128037051
Bug: 111414690
Test: manual with multiple biometrics on multiple device types
Change-Id: I4b231579565e6cce4604caebefc45ce20a19e903