Enable Skip fingerprint when adding corp account.

- override the internal activity for picking screen lock from setup
wizard, so that when adding corp account, it can skip fingerprint even
when device is not yet provisioned.

Change-Id: I9485c54d097c82a584297fcaeb63b3271e05c1b6
Fixes: 112706989
Test: atest com.android.settings.password.SetupChooseLockGenericTest