Fix gesture tutorial regression on tablets when rotating the screen

This change addresses a regression that would incorrectly show the
rotation prompt in the gesture navigation tutorial on tablets.

Fix: 339735651
Test: Run the gesture navigation tutorial in different types of devices
and ensure the rotate device prompt only shows up when necessary (ex.
portrait mode on a tablet).
Flag: EXEMPT bugfix

Change-Id: I82d90313917e4ffe478ee2babdc8dc0cb306504c