[nancy][grouille-1] change mac address of data port1 (eth2)

data/grid5000/sites/nancy/clusters/grouille/nodes/grouille-1.json

@@ -235,7 +235,7 @@
       "ip": "172.16.79.1",
       "ip6": "2001:660:4406:500:10::1",
       "kavlan": true,
-      "mac": "04:3f:72:cd:c2:18",
+      "mac": "94:6d:ae:bd:88:f6",
       "management": false,
       "model": "MT27800 Family [ConnectX-5]",
       "mountable": true,