[nancy][grvingt] change macaddress of grvingt-4 (motherboard replacement)

data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json

@@ -107,7 +107,7 @@
       "interface": "Ethernet",
       "ip": "172.17.76.4",
       "kavlan": false,
-      "mac": "50:9a:4c:85:cc:86",
+      "mac": "50:9a:4c:a2:d4:f2",
       "management": true,
       "mountable": false,
       "mounted": false,

input/grid5000/sites/nancy/clusters/grvingt/grvingt.yaml.erb

@@ -79,7 +79,7 @@ nodes:
                     50:9a:4c:85:c3:de
                     50:9a:4c:85:c5:6a
                     50:9a:4c:86:00:f2
-                    50:9a:4c:85:cc:86
+                    50:9a:4c:a2:d4:f2
                     50:9a:4c:85:b6:02
                     50:9a:4c:85:35:c0
                     50:9a:4c:85:89:3b

input/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.yaml

@@ -19,7 +19,7 @@ grvingt-4:
   network_adapters:
     bmc:
       ip: 172.17.76.4
-      mac: 50:9a:4c:85:cc:86
+      mac: 50:9a:4c:a2:d4:f2
       management: true
     eth0:
       driver: i40e