[FRR] Support customized frr notification

Update frr notification:
1. Support customized frr notification target activity
2. Update max notification count from 1 to 3
3. Add a minimal interval between frr notification and enrolled time

Bug: 388688429
Test: atest AuthenticationStatsCollectorTest
            AuthenticationStatsPersisterTest
            AuthenticationStatsTest
            FaceEnrollClientTest
            FingerprintEnrollClientTest
Flag: com.android.server.biometrics.frr_dialog_improvement
Change-Id: I7987422cf3a15cc6387665b38ce5c21b82bffd2c