To skip face enrollment for PS unlock setup based on intent extra

For private space lock setup as part of both PS setup and separate lock
form private space settings we need to show only traditional unlock
factors and Fingerprint but not show Face enrolment even on devices
where Face unlock is supported by hardware.
Once LSKF is enrolled it should be followed by Fingerprint enrollment
flow and after that Face enrollment should not be shown and exit lock
setup flow.

Currently for separate profile lock setup ACTION_SET_NEW_PASSWORD intent
is used in private space setup.
With this intent the options of LSKF+fingerprint+Face is shown in
devices supporting both fingerprint and face hardware. After the LSKF
ennrollment BiometricEnrollActivity is started which continues with
fingerprint and Face enrollment.

With this change we are passing an extra along with the intent to enroll
fingerprint only. Based on the intent extra value if set even if hardware
support exists the lock enrollment for the profile will support only
LSKF and fingerprint enrollment but not start Face enrollment.

User will still have the option to enroll Face from the dedicated settings
entrypoint in private space settings.

Recording link : b/323839067#comment4

Bug: 323839067
Test: Manual, verified option for face enrollment is shown or not shown
based on the intent extra. When extra is not passed the behaviour will be
default.

Change-Id: Idf92084052e02df9ca89f288c618796750e563e6