packaging: spec: fix packaging issue

Fixes:
error: File not found: /lib/systemd/systemd-ovirt-ha-agent
error: File not found: /lib/systemd/systemd-ovirt-ha-broker

Change-Id: I28ac68184f1f6519a4dddcd6c40a6f0285aa98b9
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>