Don't allow showing wallpapers on untrusted virtual displays

Sometimes user's image wallpaper might have sensitive information.
Third party apps can create a public virtual display then copy the
wallpaper from surface.
Add a restriction that wallpaper can only shows on displays that are
owned by system.

Fix: 129160451
Test: atest MultiDisplaySystemDecorationTests
Change-Id: I6dcc355a539b90fb51886c2ac2099c839a05bf0c