net: fec: pass ->dev to dma_alloc__coherent() API

In aarch64 system, it requires to trasfer ->dev to dma_alloc_coherent()
API, otherwise allocate failed and print kernel warning.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 172624c..bcf8675 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2651,7 +2651,7 @@
 	for (i = 0; i < fep->num_tx_queues; i++)
 		if (fep->tx_queue[i] && fep->tx_queue[i]->tso_hdrs) {
 			txq = fep->tx_queue[i];
-			dma_free_coherent(NULL,
+			dma_free_coherent(&fep->pdev->dev,
 					  txq->bd.ring_size * TSO_HEADER_SIZE,
 					  txq->tso_hdrs,
 					  txq->tso_hdrs_dma);
@@ -2685,7 +2685,7 @@
 		txq->tx_wake_threshold =
 			(txq->bd.ring_size - txq->tx_stop_threshold) / 2;
 
-		txq->tso_hdrs = dma_alloc_coherent(NULL,
+		txq->tso_hdrs = dma_alloc_coherent(&fep->pdev->dev,
 					txq->bd.ring_size * TSO_HEADER_SIZE,
 					&txq->tso_hdrs_dma,
 					GFP_KERNEL);