Add dependency on OVNMacAddressNetwork for role ResourceGroup
Add dependency on OVNMacAddressNetwork for role ResourceGroup

The role ResourceGroup (puppet/role.role.j2.yaml template) tries to
create a port on the OVNMacAddressNetwork, as such we need a dependency
in the top level stack, otherwise the network may not exist before Heat
attempts to create the port.

Change-Id: Ie453fcdbb8eb42bbf718506b0b9b443ccd84543a
Signed-off-by: James Slagle <33ab48cedd1a7cf7a68e1b587db88f55f753652f@redhat.com>

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