Add systemd dependency to openvswitch to neutron agents

Certain neutron agents need openvswitch to be running properly. This
patch adds the required depends_on so paunch can add the dependency to
the systemd service file.

Change-Id: I72b8c984fc9ae2216c8a19491ba5d7d8d58d8d3b

deployment/neutron/neutron-dhcp-container-puppet.yaml

@@ -298,6 +298,8 @@ outputs:
             privileged: true
             restart: always
             security_opt: 'label=disable'
+            depends_on:
+              - openvswitch
             healthcheck:
               test:
                 list_join:

deployment/neutron/neutron-l3-container-puppet.yaml

@@ -266,6 +266,8 @@ outputs:
             pid: host
             privileged: true
             restart: always
+            depends_on:
+              - openvswitch
             healthcheck:
               test:
                 list_join:

deployment/neutron/neutron-ovs-agent-container-puppet.yaml

@@ -293,6 +293,8 @@ outputs:
             privileged: true
             security_opt: 'label=disable'
             restart: always
+            depends_on:
+              - openvswitch
             healthcheck:
               test:
                 list_join: