Implementations of biometric contraints for weak and convenience tiers

(1) 24 hours fallback
(2) 4 hours idle timeout

Bug: 141025588

Test: atest AuthServiceTest
Test: atest KeyguardUpdateMonitorTest
Test: atest BiometricsUnlockControllerTest
Test: atest KeyguardIndicationControllerTest
Test: make -j
Change-Id: I1078ce39a2ae1e4c250b6468e477b703e3016e2c