Proceed to "finish" page upon completing enrollment

Bug: 111548037

Test: manual
Change-Id: I1c0c5cc0eb2d1808221465c5eeba92e59b2cd572

src/com/android/settings/biometrics/face/FaceEnrollEnrolling.java

@@ -171,6 +171,11 @@ public class FaceEnrollEnrolling extends BiometricsEnrollEnrolling {
 
         // TODO: Update the actual animation
         showError("Steps: " + steps + " Remaining: " + remaining);
+
+        // TODO: Have this match any animations that UX comes up with
+        if (remaining == 0) {
+            launchFinish(mToken);
+        }
     }
 
     @Override