packaging: spec: pull -setup package as our procedures includes upgrade it

must follow the legacy of:

yum install ovirt-engine
yum update ovirt-engine-setup

Related-To: https://bugzilla.redhat.com/show_bug.cgi?id=1058013
Change-Id: I5f384108bb0446d85b1f1efb4bfb2ea9d7be2bd6
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>