Enable security group on the Octavia management port

A dedicated security group (lb-health-mgr-sec-grp) is created for the
Octavia management port but it was unused as the port was created with
no-security-groups.
This commit enables this security group of the health-manager port.

Change-Id: Ib7ec0d194d9858b115ba9343a7117aa1f4d264ea
(cherry picked from commit a767d65dbc)
(cherry picked from commit d76130d0df)

tripleo_ansible/roles/octavia_controller_config/tasks/netport.yml

@@ -5,8 +5,7 @@
     port_id="$(openstack port show octavia-health-manager-{{ node_hostname }}-listen-port -f value -c id 2> /dev/null)"
     if [[ -z "${port_id}" ]]; then
       neutron port-create {{ lb_mgmt_net_name }} --binding:host_id={{ node_hostname }} \
-                                                 --no-security-groups \
-                                                 --port-security-enabled=False \
+                                                 --security-group {{ lb_health_mgr_sec_grp_name }} \
                                                  --device-owner Octavia:health-mgr \
                                                  --name octavia-health-manager-{{ node_hostname }}-listen-port \
                                                  -f value \