Android: Fix possible crash touchscreen GunCon controller

android/app/src/main/java/com/github/stenzek/duckstation/GamePropertiesActivity.java

@@ -69,6 +69,12 @@ public class GamePropertiesActivity extends AppCompatActivity {
         setTitle(mGameListEntry.getTitle());
     }
 
+    @Override
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.remove("android:support:fragments");
+    }
+
     @Override
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         if (item.getItemId() == android.R.id.home) {

android/app/src/main/java/com/github/stenzek/duckstation/TouchscreenControllerView.java

@@ -656,10 +656,9 @@ public class TouchscreenControllerView extends FrameLayout {
                         mPointerButtonCode, true);
             }
 
-            final int pointerId = event.getPointerId(0);
             AndroidHostInterface.getInstance().setMousePosition(
-                    (int)event.getX(pointerId),
-                    (int)event.getY(pointerId));
+                    (int)event.getX(0),
+                    (int)event.getY(0));
         }
 
         return true;