Call super.onCreate(savedInstanceState) first to pass the correct userId
in maxFacesEnrolled.
Test: Manual - delete face unlock for work and re-enroll and observe
face unlock can be enrolled successfully
Test: atest FaceEnrollIntroductionTest
Fixes: 284819031
Change-Id: Ic1620c0ca3ca9adc61f5281abd34471f0c1b3f97