[TIMOB-13428] iOS: ListView: Listview sample animate from bottom does not function as expected

Description:

While testing Kitchensink on iOS, we noticed that the animation for "bottom" were not appearing as expected on the last list view row See screen shots

Steps to reproduce:

1) Install KS from master branch of https://github.com/appcelerator-developer-relations/KitchenSink 2) Navigate to base UI > Views > List View > Append Items 3) Click "start test" and watch for the animation from bottom

Result:

The listview item does not animate from bottom

Expected Result:

The item animates from the bottom up