Toast: Fix MotionEvent has too many PointerCoords

If the MotionEvent has too many PointerCoords,
it will lead to an infinite loop and cannot complete the operator<<.

Bug:244248855
Test: printed MotionEvent in log to see the formatting

Signed-off-by: hupeng3 <hp121520@gmail.com>
Change-Id: Id4a01152bc4103976d3f60e69eb375e3d32669a0
1 file changed