Add M-CORD networks

Change-Id: Idc9873f06bc0ae1abdc6b6aa77d033469ecbbd84
(cherry picked from commit 6f490ffd509cb41f7f2a3385cc3e862a5039fc21)
diff --git a/scripts/clean_openstack.sh b/scripts/clean_openstack.sh
index 0d51ddf..6261f01 100755
--- a/scripts/clean_openstack.sh
+++ b/scripts/clean_openstack.sh
@@ -69,3 +69,7 @@
 neutron net-delete mysite_veg-access || true
 neutron net-delete public || true
 neutron net-delete exampleservice_network || true
+neutron net-delete spgw_network || true
+neutron net-delete s11_network || true
+neutron net-delete s1u_network || true
+neutron net-delete sgi_network || true