Only create app data for installed apps for new user

Apps not being installed for a new user don't need
to have app folders created. They will be created
later when the app is installed.

Saved around 500ms for 140 apps that were
excluded.

Bug: 187985313
Test: Reboot, Create a new user and add existing apps

Change-Id: If629301b771466a0a07a8b4369687df80fd336c3