Check whether udfps is supported instead of enrolled

In case there are delays in onEnrollmentChanged, let's make
sure that KeyguardUpdateMonitor uses the correct logic for
whether to run UDFPS or not.

Test: atest LockIconViewControllerTest
Bug: 205670174
Change-Id: Ia2b4fd290b4d78819fabf7bea744faed62fa0d3b
5 files changed