Fix sharded MongoDB blueprint

When we wrote the blueprint, we misplaced the bind_ip property and set
it on host type instead of the router, which caused validation to
fail. This commit makes blueprint pass the validation.

Note that blueprint will still fail to deploy properly, since MongoDB
cluster is not fully supported yet.

Change-Id: I4f0d6aceb42ff17b0a243d5331f97bf5646fc585

mongo/mongo-shard.yaml

@@ -73,8 +73,6 @@ node_templates:
 
   router_vm:
     type: dice.hosts.ubuntu.Small
-    properties:
-      bind_ip: global
     relationships:
       - type: dice.relationships.ProtectedBy
         target: mongo_fw
@@ -83,6 +81,8 @@ node_templates:
 
   router:
     type: dice.components.mongo.Router
+    properties:
+      bind_ip: global
     relationships:
       - type: dice.relationships.ContainedIn
         target: router_vm