Make sure SELinux labels are correct after move-to operations

In some circumstances wallpaper-related files are moved into position,
and must then take proper effect.  Make sure that they have the
correct SELinux labels afterwards to avoid preventing some valid
accesses.

Bug 29469965

Change-Id: I6d7c86be63d568fa0ad8841d109a7ff2149fdd54
1 file changed