Avoid opening hub when we transitioned to occluded from dream

When hubV2 is enabled, avoid transitioning to the hub if we opened an
app from the dream. In this case, the user should return to the
lockscreen.

Fixes: 411577003
Test: atest CommunalInteractorTest
Flag: com.android.systemui.glanceable_hub_v2
Change-Id: I05013d3746a1a662428fa571dc7ab0f81863e216