Fix issues with SUW on fingerprint devices

Fixes the following issues related to fingerprint/face in Setup Wizard:
- Ensures super.onStop() is called by all enrollment-related Activities

Test: Proceed through Setup Wizard on factory reset Pixel 3 XL
Before: Periodic crash dialogs and stuck on fingerprint enrollment
After: Able to proceed through wizard and enroll fingerprint normally

Bug: 147325159
Change-Id: I76eb8c944140aa68f78eaea3702f440102b779c6

src/com/android/settings/biometrics/fingerprint/FingerprintEnrollFindSensor.java

@@ -115,10 +115,10 @@ public class FingerprintEnrollFindSensor extends BiometricEnrollBase {
 
     @Override
     protected void onStop() {
+        super.onStop();
         if (mAnimation != null) {
             mAnimation.pauseAnimation();
         }
-        super.onStop();
     }
 
     @Override