Test aspect ratio restrictions not applied to resizeable activities in desktop

Flag: com.android.window.flags.ignore_aspect_ratio_restrictions_for_resizeable_freeform_activities
Test: atest WmTests:SizeCompatTests#testAspectRatioOverridesNotAppliedToResizeableFreeformActivity
Fixes: 387957808
Change-Id: I90cc47fd7ec02b9cd181ffe148e91743835c65b7