Use userId instead of callingUserId

Fixes: 120329836

Test: 1) set up personal profile with password+fingerprint
      2) set up work profile with only password
      3) disable one lock
      4) open work profile version of biometric demo
      5) biometric prompt is not shown (as expected)

Test: BiometricManager#canAuthenticate() checks for the correct user ID
      for personal and work profile

Change-Id: If3e5d6446dc9f4ec056efd49f575302aadfbb9fd