Count TaskView PendingIntent as activity launch

WindowOrganizerController cannot setAllReadyIfNeeded if there's
a TaskView launch in the WCT because it needs to wait for resume
to generate the right transition.

If the TaskView is coming up on lockscreen and sets showWhenLocked
during onCreate instead of statically it can be missed by moving to
ready too soon.

Change-Id: I0706c89376d82a2c854a243868b9c00fce1b1454
Flag: EXEMPT bugfix
Bug: 350735393
Bug: 345189844
Test: atest ActivityLifecycleFreeformTests
Test: Manual test of HomeControlsActivity on lock screen