Update the number of controls shown for larger devices.

Landscape has 2 controls in one row, while portrait has 4. Larger
screens have enough space to show 4 controls per row, but landscape
is limited to 2 since it is split in half by width (2 column layout).

Bug: 171918213
Test: Manual
Screenshots: dr/corp/drive/folders/1R9k6dS6iT0Gun8K4d9YXv4oVOptviJcC?resourcekey=0-kIldaYWyGGsEhypU3Ie4hQ
Change-Id: Id6f630adc1eb24446f918bdb91104fc688a6f60d