net: ti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles

dev_consume_skb_irq() should be called in cpmac_end_xmit() when
xmit done. It makes drop profiles more friendly.
Signed-off-by: NYang Wei <yang.wei9@zte.com.cn>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/ti/cpmac.c

@@ -608,7 +608,7 @@ static void cpmac_end_xmit(struct net_device *dev, int queue)
 			netdev_dbg(dev, "sent 0x%p, len=%d\n",
 				   desc->skb, desc->skb->len);
 
-		dev_kfree_skb_irq(desc->skb);
+		dev_consume_skb_irq(desc->skb);
 		desc->skb = NULL;
 		if (__netif_subqueue_stopped(dev, queue))
 			netif_wake_subqueue(dev, queue);