packaging: Fixed creating objects in an insecure way

This patch is using a 'validate_cert_chain' flag
instead of 'insecure' flag in the ovirt API during
creation of non-secure objects.

Change-Id: Ib49ca800463379448e870de443f5f00657c33843
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=999336
Signed-off-by: Kiril Nesenko <knesenko@redhat.com>