Support injecting novaMetadataIp and novaMetadataPort through cfg

Change-Id: Ida449424235b70a791e8ed1d423f021f6d6726f7
(cherry picked from commit 92b6f29283b6779c9cbb0dbfdc4359aaefd89a42)
diff --git a/apps/openstacknode/network-cfg.json b/apps/openstacknode/network-cfg.json
index 19e3b22..b0f0660 100644
--- a/apps/openstacknode/network-cfg.json
+++ b/apps/openstacknode/network-cfg.json
@@ -95,7 +95,9 @@
       },
       "neutronConfig": {
         "useMetadataProxy": true,
-        "metadataProxySecret": "onos"
+        "metadataProxySecret": "nova",
+        "novaMetadataIp": "172.16.130.10",
+        "novaMetadataPort": 8775
       }
     },
     {