Update network-plugins to use portmap plugin (#1763)

Portmap allow to use hostPort with CNI plugins. Should fix #1675

roles/network_plugin/canal/templates/cni-canal.conflist.j2

@@ -0,0 +1,26 @@
+{
+  "name": "cni0",
+  "cniVersion":"0.3.1",
+  "plugins":[
+    {
+      "type": "flannel",
+      "delegate": {
+        "type": "calico",
+        "etcd_endpoints": "{{ etcd_access_addresses }}",
+        "log_level": "info",
+        "policy": {
+          "type": "k8s"
+        },
+        "kubernetes": {
+          "kubeconfig": "{{ kube_config_dir }}/node-kubeconfig.yaml"
+        }
+      }
+    },
+    {
+      "type":"portmap",
+      "capabilities":{
+        "portMappings":true
+      }
+    }
+  ]
+}