qede: use reset to set network header

Since offset is zero, it's not necessary to use set function. Reset
function is straightforward, and will remove the unnecessary add
operation in set function.
Signed-off-by: NZhang Shengju <zhangshengju@cmss.chinamobile.com>
Acked-by: NYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qede/qede_main.c

@@ -1312,7 +1312,7 @@ static void qede_gro_receive(struct qede_dev *edev,
 
 #ifdef CONFIG_INET
 	if (skb_shinfo(skb)->gso_size) {
-		skb_set_network_header(skb, 0);
+		skb_reset_network_header(skb);
 
 		switch (skb->protocol) {
 		case htons(ETH_P_IP):