Revert "Remove creating networks from openstack.yaml"

This reverts commit 6f2b07f3d8c89c17eb087b775f41f78db9fca6bd.

Change-Id: I85e6fae3b9d7aa46d49a6263bceeab84fb110c2c
diff --git a/tcp_tests/templates/virtual-mcp-pike-dvr-ceph-rgw/ceph.yaml b/tcp_tests/templates/virtual-mcp-pike-dvr-ceph-rgw/ceph.yaml
index e2573e8..e55c9f8 100644
--- a/tcp_tests/templates/virtual-mcp-pike-dvr-ceph-rgw/ceph.yaml
+++ b/tcp_tests/templates/virtual-mcp-pike-dvr-ceph-rgw/ceph.yaml
@@ -168,3 +168,4 @@
   skip_fail: false
 
 {{ BACKUP.MACRO_BACKUP_CEPH() }}
+{{ SHARED.INSTALL_DOCKER_ON_GTW() }}