packaging: setup: add glusterfs domain type

Add glusterfs to the list of available default domain types
when application mode is virt or both.

Change-Id: I7cb2a86fb8e49109269491b5782c92d454624a44
Bug-Url: https://bugzilla.redhat.com/1046592
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>
Signed-off-by: Hajime Taira <htaira@redhat.com>