[NET]: Correct two mistaken skb_reset_mac_header() conversions.

This operation helper abstracts:

	skb->mac_header = skb->data;

but it was done in two more places which were actually:

	skb->mac_header = skb->network_header;

and those are corrected here.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ax25/ax25_in.c

@@ -124,7 +124,7 @@ int ax25_rx_iframe(ax25_cb *ax25, struct sk_buff *skb)
 		}
 
 		skb_pull(skb, 1);	/* Remove PID */
-		skb_reset_mac_header(skb);
+		skb->mac_header = skb->network_header;
 		skb_reset_network_header(skb);
 		skb->dev      = ax25->ax25_dev->dev;
 		skb->pkt_type = PACKET_HOST;

net/netrom/nr_dev.c

@@ -56,7 +56,7 @@ int nr_rx_ip(struct sk_buff *skb, struct net_device *dev)
 
 	/* Spoof incoming device */
 	skb->dev      = dev;
-	skb_reset_mac_header(skb);
+	skb->mac_header = skb->network_header;
 	skb_reset_network_header(skb);
 	skb->pkt_type = PACKET_HOST;