17/n: Show credential UI if setDeviceCredentialAllowed(true) and no biometrics

Also, get credential type after userId is set. Otherwise the UI is
incorrect.

Bug: 140127687

Test: atest BiometricServiceTest
Test: manual test with managed profile, one-lock disabled, with/without
      fingerprint, and with different types of credentials between
      owner and managed profile

Change-Id: Ibaf537acf6190458d093a404d9b20d279937a6cc