packaging: Change spec file according to the packaging standards.
packaging: Change spec file according to the packaging standards.

Change-Id: I76932778002b2e6a7c2b395cbad7a1882900e91f
Signed-off-by: Kiril Nesenko <c377644256f2520ee68af386b25c50ac247ee8aa@redhat.com>

oVirt/ovirt-image-uploader,oVirt/ovirt-image-uploader,oVirt/ovirt-image-uploader