Set DIB_DEBIAN_COMPONENTS: 'main,universe' for ubuntu-minimal
Set DIB_DEBIAN_COMPONENTS: 'main,universe' for ubuntu-minimal

By default the ubuntu-minimal element also include restricted. Because
we don't use restricted in our AFS mirrors we can drop this at
diskimage build time.

Change-Id: I64248182bab7ec46bbdfcb01b097133a6aa28a5b
Signed-off-by: Paul Belanger <e7139c8e6c4ea75cc1c287ce081b2dc0f3ab39ec@redhat.com>

openstack-infra/project-config,openstack-infra/project-config