Use the same activity for compat change tests

By default if display ID is set in LaunchActivityBuilder it both the new
task and multiple task launch flag, but we don't want to launch
multiple instances of the same activity in CompatChangeTest. Otherwise
we could mistrigger process restart and kills the CTS process because we
choose to restart the process of background activities if they can't
handle new configurations and we do have background activities that were
launched previously.

Bug: 208266661
Test: Intent launch flags don't have multiple task set.
Change-Id: I9331b676a739dc97eb0e040f4f79ae0c080b7905
1 file changed