Show biometric-specific dialog when appropriate

1) We need to pass a "restriction" string from settings to the dialog,
   otherwise the biometric dialog could be shown in non-biometric
   flows
2) Updates ActionDisabledByAdminDialogHelper to pass the restrition
   to be taken into consideration when creating the controller
3) Sets an optional onClickListener on the positive button.

Bug: 5788943
Test: atest ParentalControlsUtilsTest
Change-Id: Iedff7fef50e186b2779f061f37d3080c910d2179

src/com/android/settings/enterprise/ActionDisabledByAdminDialog.java

@@ -37,7 +37,7 @@ public class ActionDisabledByAdminDialog extends Activity
         final RestrictedLockUtils.EnforcedAdmin enforcedAdmin =
                 getAdminDetailsFromIntent(getIntent());
         final String restriction = getRestrictionFromIntent(getIntent());
-        mDialogHelper = new ActionDisabledByAdminDialogHelper(this);
+        mDialogHelper = new ActionDisabledByAdminDialogHelper(this, restriction);
         mDialogHelper.prepareDialogBuilder(restriction, enforcedAdmin)
                 .setOnDismissListener(this)
                 .show();