packethost: fix default network setting

It's actually "default_interface", not just "default".  I must have
tested with it correct, then copied it in wrong to system-config :/

Change-Id: I38a76c2d162a9ef35ebaa87080d6986af1a3daa2

modules/openstack_project/templates/nodepool/clouds.yaml.erb

@@ -104,7 +104,7 @@ clouds:
         values:
           networks:
             - name: openstackzuul-net
-              default: True
+              default_interface: True
     auth:
       auth_url: https://packet.platform9.net/keystone
       username: <%= @packethost_username %>

modules/openstack_project/templates/puppetmaster/all-clouds.yaml.erb

@@ -181,7 +181,7 @@ clouds:
         values:
           networks:
             - name: openstackci-net
-              default: True
+              default_interface: True
     auth:
       auth_url: https://packet.platform9.net/keystone
       username: <%= @puppetmaster_clouds['openstackci_packethost_username'] %>
@@ -196,7 +196,7 @@ clouds:
         values:
           networks:
             - name: openstackzuul-net
-              default: True
+              default_interface: True
     auth:
       auth_url: https://packet.platform9.net/keystone
       username: <%= @puppetmaster_clouds['openstackzuul_packethost_username'] %>

modules/openstack_project/templates/puppetmaster/ansible-clouds.yaml.erb

@@ -104,7 +104,7 @@ clouds:
         values:
           networks:
             - name: openstackci-net
-              default: True
+              default_interface: True
     auth:
       auth_url: https://packet.platform9.net/keystone
       username: <%= @puppetmaster_clouds['openstackci_packethost_username'] %>