Add OVN chassis macs to hieradata
Add OVN chassis macs to hieradata

Add the tempalte in tripleo-ansible to the list of
hieradata_templates in common/hiera-steps-tasks.yaml

Depends-On: https://review.opendev.org/733719
Related-Bug: #1881593
Change-Id: I0a57374c5b58f5953b079b6690ecc77887ec8751

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates