Lockscreen target fixes

- Ensure icon's raw screen coordinates are used
to calculate intersection.
- Ensure we expand/collapse when running hint animation
  for unlock due to bounce.
- Ensure we don't animate window bound changes.

CYNGNOS-2349

Change-Id: Id18e2237c1ce9bfb2bcaa669934a4b3af4341521
(cherry picked from commit f8d9e899)