[grenoble] servers - add missing MAC

data/grid5000/sites/grenoble/servers/digsed.json

@@ -11,7 +11,8 @@
       "ip": "172.17.30.4"
     },
     "default": {
-      "ip": "172.16.31.4"
+      "ip": "172.16.31.4",
+      "mac": "EC:F4:BB:CF:C2:98"
     }
   },
   "redfish": true,

data/grid5000/sites/grenoble/servers/digwatt.json

@@ -11,7 +11,8 @@
       "ip": "172.17.30.9"
     },
     "default": {
-      "ip": "172.16.31.9"
+      "ip": "172.16.31.9",
+      "mac": "F8:F2:1E:23:EF:20"
     }
   },
   "redfish": true,

input/grid5000/sites/grenoble/servers/physical.yaml

@@ -7,6 +7,7 @@ digsed:
   network_adapters:
     default:
       ip: 172.16.31.4
+      mac: EC:F4:BB:CF:C2:98
     adm:
       ip: 172.17.31.4
     bmc:
@@ -50,6 +51,7 @@ digwatt:
   network_adapters:
     default:
       ip: 172.16.31.9
+      mac: F8:F2:1E:23:EF:20
     bmc:
       ip: 172.17.30.9
     adm: