Allow apps specifying minWidth/Height to still enter split

- Instead of preventing apps from entering split if their
  minWidth/Height is greater than the smallest split width/height, we
  still put the app into split and allow it to be cropped (since the
  user can resize it to a larger size).  This does not affect apps that
  mark themselves as unresizeable.

Bug: 365559738
Flag: EXEMPT bugfix
Test: Manual, enter split with app specifying minWidth/Height
Change-Id: I13fbd0a3bb10fba3e6b8054f59ffc2826c4d8eb8