Mandatory Biometrics - Framework (3/N)

Account for multiple profiles: if mandatory biometrics is enabled for
the main user, then it is also enabled for all user profiles

Flag: android.hardware.biometrics.flags.mandatory_biometrics
Test: atest PreAuthInfoTest BiometricServiceTest
Fixes: 339910180

Change-Id: I18c5ce4e4f823fa3cd523822a0638b55c84f4d8c