Add app bounds to Configuration#compareTo.

This CL takes app bounds into consideration when comparing two
Configurations with compareTo.

Change-Id: I9894f312429626975a2651b837cae8d80548c271
Fixes: 63160229
Test: go/wm-smoke
Test: bit FrameworksServicesTests:com.android.server.wm.AppBoundsTests#testConfigurationCompareTo