b3b6cc06c3
Using OVN from packages was introduced in devstack via https://review.opendev.org/c/openstack/devstack/+/763402 This change updates the sample files to make users aware of it, especially when specifying the OVN branch to be used. Change-Id: Ibfbdd712e49d1fb8522bcc39357be0f311ce3f5c