Fixed double face auth on swipe

Previously, if a face was rejected, and PIN/Pattern/Pass was
presented, and the user swiped on to unlock simultaneously, 2x face
authentications would be observed.

Test: Verified 10/10 times that device no longer performs 2x face
authentications in the scenario described above.
Fixes: 188598635

Change-Id: I24f964981484cfa19f7e1709f95da485204ff7a9