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: I015c6b5441f0d1e33bb3aae378a59ad8557f9da5
Bug-Url: https://bugzilla.redhat.com/886525
Signed-off-by: Alex Lourie <alourie@redhat.com>