Fix GridFragment crash in landscape

Grid layout-land is out of date for long time. Just fix the crash first. And file an issue for launcher team to turn off grid selection https://buganizer.corp.google.com/issues/221129455
Screenshot: https://screenshot.googleplex.com/5zdrAZLQhnKLFGo

Bug: 220268751
Test: Manual
Change-Id: I4b8302961c56a05199e3485149bdd759c9125907