[rennes][abacus21] Correct interface

data/grid5000/sites/rennes/clusters/abacus21/nodes/abacus21-1.json

@@ -22,7 +22,15 @@
   ],
   "network_adapters": [
     {
-      "device": "eth0",
+      "device": "eth1",
+      "enabled": false,
+      "interface": "Ethernet",
+      "kavlan": false,
+      "mountable": false,
+      "mounted": false
+    },
+    {
+      "device": "eth2",
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.16.109.21",
@@ -35,14 +43,6 @@
       "switch": null,
       "switch_port": null
     },
-    {
-      "device": "eth1",
-      "enabled": false,
-      "interface": "Ethernet",
-      "kavlan": false,
-      "mountable": false,
-      "mounted": false
-    },
     {
       "device": "bmc",
       "enabled": true,