f52a3af42b
Adds the ability to override the os-net-config data for the undercloud. In some cases, a single bridge with a single physical interface may not be sufficient for all cases. This will allow for more advanced customization of the undercloud networking. The path to a custom os-net-config json template can be specificed in undercloud.conf with the net_config_override option. Change-Id: I1fdc62d61eb5d2ea7e9418e40aa8c07173169d35