Reduce setInputWindows call (1/2)

The cursor surface and hotspot surface would cause the visible region
dirty when moving on the screen. That would also cause SF update the
input infos to InputFlinger.

To reduce unecessary updating, add more checking for same value and
ignore updating if just the cursor moving.

Test: enable setInputWindow log, connect a mouse device and move.
Bug: 133780957
Change-Id: I099c1175e291adccfafce49536acfdfb38c40371