Block simple numeric passwords in ChooseLockPassword

Fix the previously-missing case where the user elects to set
a password (instead of PIN), but still sets a numeric password
that contains repeated sequence which should be blocked by admin
policy.

Bug: 72039850
Test: Set NUMERIC_COMPLEX password quality, then attempt to
      enroll a repeating numeric PIN as lockscreen *password*
Change-Id: I7c7525716b37a5330147b899b80026ca71c3ce0c