Passed an extra flag denoting whether assetId is present or not

This CL aims at making changes for passing an extra flag which denotes
whether assetId is present or not while previewing a wallpaper. This is
needed in order to determine accurately the right destination we would
want to allow when a user edits a wallpaper.

Bug: b/279574752
Test: Tested by editing the currently applied wallpaper and checking the
available options for setting the edited wallpaper.

Change-Id: I89ba8e66b741a57c79721e6d21e3446c7da9d21c