Use own surface bounds as touchable region

Use replaceTouchableRegionWithCrop = true to make
ActivityRecordInputSink use the ActivityRecords surface bounds to
restrict the crop of the InputWindowHandle. Using
activityRecord.getParentSurfaceControl() made it be restricted to the
task surface and it wasn't updated when an ActivityRecord was
reparented.

Test: atest CtsWindowManagerDeviceTestCases:CrossAppDragAndDropTests
Bug: 194480991

Change-Id: Id3b86ce232c5a61503d4f0d86d61849502efe230