[BiometricsV2] Refactor EnrollFinishFragment

Refactor FingerprintEnrollFinishFragment to kotlin and add bindView()
method for it

Bug: 286197658
Test: atest FingerprintEnrollmentActivityTest
Test: atest biometrics-enrollment-test
Test: Manually test enrollment
Change-Id: I59af5cc96369e63a4d755f5618f05dcf89cb0a50
2 files changed