Glean config on OVH nodes
Glean config on OVH nodes

Instruct glean via metadata properties to ignore the config drive
network_data.json interface data on OVH and instead fall back to DHCP.
This is necessary because post upgrade OVH config drive
network_data.json provides inaccurate network configuration details and
DHCP is actually what is needed there for working l2 networking.

Change-Id: I51f16d34a96ee8d964e8b540ce5113a662a56f6d

openstack-infra/project-config,openstack-infra/project-config