Changed location to locations in json files in topos

Change-Id: Iebe2ae9dfc7937e2199e4038488559c2fbc8014c
diff --git a/tools/test/topos/vpls.json b/tools/test/topos/vpls.json
index ea3654a..41d9511 100644
--- a/tools/test/topos/vpls.json
+++ b/tools/test/topos/vpls.json
@@ -8,12 +8,12 @@
     "of:0000000000000006": { "basic": { "name": "s6", "latitude": 40.728270, "longitude": -73.994483 }}
   },
   "hosts": {
-    "00:00:00:00:00:01/100": { "basic": { "location": "of:0000000000000001/1", "ips": [ "10.0.0.1" ], "name": "h1", "latitude": 40.888148, "longitude": -103.459878 }},
-    "00:00:00:00:00:02/200": { "basic": { "location": "of:0000000000000002/1", "ips": [ "10.0.0.2" ], "name": "h2", "latitude": 42.756945, "longitude": -79.831317 }},
-    "00:00:00:00:00:03/300": { "basic": { "location": "of:0000000000000003/1", "ips": [ "10.0.0.3" ], "name": "h3", "latitude": 35.427493, "longitude": -83.885831 }},
-    "00:00:00:00:00:04/400": { "basic": { "location": "of:0000000000000004/1", "ips": [ "10.0.0.4" ], "name": "h4", "latitude": 34.662290, "longitude": -110.946662 }},
-    "00:00:00:00:00:05/-1": { "basic": { "location": "of:0000000000000005/1", "ips": [ "10.0.0.5" ], "name": "h5", "latitude": 33.224634, "longitude": -121.532943 }},
-    "00:00:00:00:00:06/-1": { "basic": { "location": "of:0000000000000006/1", "ips": [ "10.0.0.6" ], "name": "h6", "latitude": 42.395459, "longitude": -75.293563 }}
+    "00:00:00:00:00:01/100": { "basic": { "locations": ["of:0000000000000001/1"], "ips": [ "10.0.0.1" ], "name": "h1", "latitude": 40.888148, "longitude": -103.459878 }},
+    "00:00:00:00:00:02/200": { "basic": { "locations": ["of:0000000000000002/1"], "ips": [ "10.0.0.2" ], "name": "h2", "latitude": 42.756945, "longitude": -79.831317 }},
+    "00:00:00:00:00:03/300": { "basic": { "locations": ["of:0000000000000003/1"], "ips": [ "10.0.0.3" ], "name": "h3", "latitude": 35.427493, "longitude": -83.885831 }},
+    "00:00:00:00:00:04/400": { "basic": { "locations": ["of:0000000000000004/1"], "ips": [ "10.0.0.4" ], "name": "h4", "latitude": 34.662290, "longitude": -110.946662 }},
+    "00:00:00:00:00:05/-1": { "basic": { "locations": ["of:0000000000000005/1"], "ips": [ "10.0.0.5" ], "name": "h5", "latitude": 33.224634, "longitude": -121.532943 }},
+    "00:00:00:00:00:06/-1": { "basic": { "locations": ["of:0000000000000006/1"], "ips": [ "10.0.0.6" ], "name": "h6", "latitude": 42.395459, "longitude": -75.293563 }}
   },
   "ports": {
     "of:0000000000000001/1": {