[network] Fix L2VPN sites connection to renater

data/grid5000/network_equipments/renater-lille.json

@@ -7,10 +7,6 @@
         {
           "uid": "renater-paris"
         },
-        {
-          "rate": 1000000000,
-          "uid": "renater-reims"
-        },
         {
           "kind": "router",
           "site_uid": "lille",

data/grid5000/network_equipments/renater-sophia.json

@@ -7,6 +7,14 @@
         {
           "uid": "renater-marseille"
         },
+        {
+          "rate": 1000000000,
+          "uid": "renater-reims"
+        },
+        {
+          "rate": 1000000000,
+          "uid": "renater-nantes"
+        },
         {
           "kind": "router",
           "site_uid": "sophia",