Fix consequent activity launch on virtual displays

When activity is launched from a secondary display, it
by default should land on the same display. This was broken
by recent restrictions added for virtual displays.

Bug: 63117330
Test: android.server.cts.ActivityManagerDisplayTests
Test: #testConsequentLaunchActivityFromVirtualDisplay
Test: #testConsequentLaunchActivityFromVirtualDisplayToTargetDisplay
Test: #testConsequentLaunchActivityFromVirtualDisplayNoEmbedding
Change-Id: Ie8adfe8eacb3cf8a05115c13bcad881dba51badb