[grenoble][troll] Downgrade network firmware on troll-4

data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json

@@ -50,7 +50,7 @@
       "device": "eth0",
       "driver": "mlx5_core",
       "enabled": true,
-      "firmware_version": "14.25.8000 (DEL2810000034)",
+      "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.4",
       "ip6": "2001:660:4406:100:3::4",
@@ -71,7 +71,7 @@
       "device": "eth1",
       "driver": "mlx5_core",
       "enabled": false,
-      "firmware_version": "14.25.8000 (DEL2810000034)",
+      "firmware_version": "14.24.8000 (DEL2810000034)",
       "interface": "Ethernet",
       "kavlan": false,
       "mac": "b8:59:9f:b1:09:05",

input/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.yaml

@@ -25,7 +25,7 @@ troll-4:
       management: true
     eth0:
       driver: mlx5_core
-      firmware_version: 14.25.8000 (DEL2810000034)
+      firmware_version: 14.24.8000 (DEL2810000034)
       interface: Ethernet
       ip: 172.16.22.4
       mac: b8:59:9f:b1:09:04
@@ -36,7 +36,7 @@ troll-4:
       vendor: Mellanox Technologies
     eth1:
       driver: mlx5_core
-      firmware_version: 14.25.8000 (DEL2810000034)
+      firmware_version: 14.24.8000 (DEL2810000034)
       interface: Ethernet
       mac: b8:59:9f:b1:09:05
       management: false