packaging: spec: fix ppc64le repository closure
packaging: spec: fix ppc64le repository closure

libguestfs is not available on ppc64le.

Change-Id: Iebff63c8847bead8bac082084223147fe4ed6470
Signed-off-by: Sandro Bonazzola <fcb014d63786651910af5db2ecc5316c668188ef@redhat.com>

oVirt/ovirt-hosted-engine-setup,oVirt/ovirt-hosted-engine-setup