batman-adv: Mark batadv_netlink_ops as const

The genl_ops don't need to be written by anyone and thus can be moved in a
ro memory range.
Signed-off-by: NSven Eckelmann <sven@narfation.org>
Signed-off-by: NSimon Wunderlich <sw@simonwunderlich.de>

net/batman-adv/netlink.c

@@ -530,7 +530,7 @@ batadv_netlink_dump_hardifs(struct sk_buff *msg, struct netlink_callback *cb)
 	return msg->len;
 }
 
-static struct genl_ops batadv_netlink_ops[] = {
+static const struct genl_ops batadv_netlink_ops[] = {
 	{
 		.cmd = BATADV_CMD_GET_MESH_INFO,
 		.flags = GENL_ADMIN_PERM,