bnx2x: use the DMA API instead of the pci equivalents

The DMA API is preferred.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Vladislav Zolotarov <vladz@broadcom.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bnx2x.h

@@ -163,7 +163,7 @@ do {								 \
 
 struct sw_rx_bd {
 	struct sk_buff	*skb;
-	DECLARE_PCI_UNMAP_ADDR(mapping)
+	DEFINE_DMA_UNMAP_ADDR(mapping);
 };
 
 struct sw_tx_bd {
@@ -176,7 +176,7 @@ struct sw_tx_bd {
 
 struct sw_rx_page {
 	struct page	*page;
-	DECLARE_PCI_UNMAP_ADDR(mapping)
+	DEFINE_DMA_UNMAP_ADDR(mapping);
 };
 
 union db_prod {