Verify device aspect ratio is less than 3 in sandboxing tests.

This is important because we assume 3 is larger than any device aspect ratio that these CTS tests will be run on, according to CDD - https://source.android.com/compatibility/android-cdd#7_1_1_2_screen_aspect_ratio.

Test: atest CtsWindowManagerDeviceTestCases:CompatChangeTests
Fix: 189222635
Change-Id: I209dafd586526f890f8aa62974d64e99d595fa7f