Send launch token to activity manager

When an instant app is installed, control passes from the platform
to the instant app installer. However, when the instant app is
launched, the original launch token needs to be associated with that
launch. Do this by sending the launch token along with the original
launch intent

Change-Id: I5741be343862d4e5c8bfb6b4a81d0bac8e53ea9c
Fixes: 35445667
Test: Build and manully inspect the event logs to ensure the launch token is sent on instant app launch