batman-adv: use ETH_P_BATMAN

The ETH_P_BATMAN ethertype is now defined kernel-wide. Use it instead
of the private BATADV_ETH_P_BATMAN define.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index c7f7023..4425af9 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -28,6 +28,8 @@
 #include "gateway_common.h"
 #include "originator.h"
 
+#include <linux/if_ether.h>
+
 static void batadv_send_outstanding_bcast_packet(struct work_struct *work);
 
 /* send out an already prepared packet to the given address via the
@@ -60,11 +62,11 @@
 	ethhdr = (struct ethhdr *)skb_mac_header(skb);
 	memcpy(ethhdr->h_source, hard_iface->net_dev->dev_addr, ETH_ALEN);
 	memcpy(ethhdr->h_dest, dst_addr, ETH_ALEN);
-	ethhdr->h_proto = __constant_htons(BATADV_ETH_P_BATMAN);
+	ethhdr->h_proto = __constant_htons(ETH_P_BATMAN);
 
 	skb_set_network_header(skb, ETH_HLEN);
 	skb->priority = TC_PRIO_CONTROL;
-	skb->protocol = __constant_htons(BATADV_ETH_P_BATMAN);
+	skb->protocol = __constant_htons(ETH_P_BATMAN);
 
 	skb->dev = hard_iface->net_dev;