[grenoble] dahu - Update dahu-18 BMC (replacement of motherboard)

• remplacement de la carte mère

data/grid5000/accesses/refrepo.json

@@ -1962,7 +1962,7 @@
                   "interface": "Ethernet",
                   "ip": "172.17.20.18",
                   "kavlan": false,
-                  "mac": "50:9a:4c:78:12:5e",
+                  "mac": "6c:2b:59:9a:c4:ae",
                   "management": true,
                   "mountable": false,
                   "mounted": false,