Use source rect hint from stopSwipePipToHome of home

So shell side doesn't need to simulate the same calculation from
different info (e.g. based on transition info). To make the crop
of animation by home and the transition end state have the same
appearance.

Bug: 331315278
Test: Assume the target app support auto-pip and it doesn't draw
      under display cutout.
      E.g. LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES
      Enter PiP from 90 degrees to home with 0 degrees.
      The left side of pip should not flicker.
Change-Id: I6a58d42c4b57dfcf42f2e656ce72185da7c56738