[rennes] network api - changed c6509-grid kind from switch to router

data/grid5000/sites/rennes/network_equipments/c6509-grid.json

@@ -2,7 +2,7 @@
   "channels": {
     "naming_pattern": "Po%CHANNELID%"
   },
-  "kind": "switch",
+  "kind": "router",
   "linecards": [
     {
 

generators/input/sites/rennes/net-links/c6509-grid.yaml

 --- 
 c6509-grid: 
   model: cisco
-  kind: switch
+  kind: router
   site: rennes
   snmp_community: privkavlan
   routes: {}