core: set Disk Profile for cloned VM from snapshot

Disk Profile was missing in disk image mapping to
storage_doamin_image_map.

Change-Id: Iab5f79e853a1482ccabf6c287d663da87ab332fe
Bug-Url: https://bugzilla.redhat.com/1161939
Signed-off-by: Gilad Chaplik <gchaplik@redhat.com>