Add @SuppressWarnings to unblock T SDK for <unknown commit>

LSC: https://docs.google.com/document/d/16tpK6aXqN68PvTyvt4siM-m7f0NXi_8xEeitLDzr8xY/edit?usp=sharing

TESTED=NA
BEGIN_PUBLIC/END_PUBLIC
PiperOrigin-RevId: 486180995

library/core/src/main/java/com/google/android/exoplayer2/video/spherical/TouchTracker.java

@@ -94,6 +94,8 @@ import androidx.annotation.BinderThread;
     return true;
   }
 
+  // Incompatible parameter type for e1.
+  @SuppressWarnings("nullness:override.param.invalid")
   @Override
   public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
     // Calculate the touch delta in screen space.