Change fingerprint reenrollment to acquired message

Bug: 258901849
Test: Manual: Follow steps in https://docs.google.com/document/d/1wHQSAc0yvDBZdN4ZaXKaVi8vs1i5-u7Yh7rLfuJAQgc/edit#heading=h.c04xqjzf7saq, then unlock through keyguard, the notification should occur in 5 seconds of unlocking
Test: atest BiometricNotificationServiceTest
Test: atest BiometricNotificationDialogFactoryTest
Change-Id: Iff606eb464132493b582e8e34a72c1f23472d088