[SCSI] fnic: use DMA_BIT_MASK(nn) instead of deprecated DMA_nnBIT_MASK

Robert Love reported warning while building fnic_main.c:
drivers/scsi/fnic/fnic_main.c:478: warning: `DMA_nnBIT_MASK' is deprecated.

Replaced use of DMA_nnBIT_MASK by DMA_BIT_MASK(nn)
Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/fnic/fnic_main.c

@@ -473,16 +473,16 @@ static int __devinit fnic_probe(struct pci_dev *pdev,
 	 * limitation for the device.  Try 40-bit first, and
 	 * fail to 32-bit.
 	 */
-	err = pci_set_dma_mask(pdev, DMA_40BIT_MASK);
+	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
 	if (err) {
-		err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (err) {
 			shost_printk(KERN_ERR, fnic->lport->host,
 				     "No usable DMA configuration "
 				     "aborting\n");
 			goto err_out_release_regions;
 		}
-		err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (err) {
 			shost_printk(KERN_ERR, fnic->lport->host,
 				     "Unable to obtain 32-bit DMA "
@@ -490,7 +490,7 @@ static int __devinit fnic_probe(struct pci_dev *pdev,
 			goto err_out_release_regions;
 		}
 	} else {
-		err = pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK);
+		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40));
 		if (err) {
 			shost_printk(KERN_ERR, fnic->lport->host,
 				     "Unable to obtain 40-bit DMA "