sata_dwc_460ex: indent an if statement

We shuffled some code around in 8b344485 ('sata_dwc_460ex: move to
generic DMA driver') an accidentally deleted a tab character here.  It
causes a Smatch warning "if statement not indented".
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NTejun Heo <tj@kernel.org>

drivers/ata/sata_dwc_460ex.c

@@ -295,7 +295,7 @@ static void dma_dwc_xfer_done(void *hsdev_instance)
 	}
 
 	if ((hsdevp->dma_interrupt_count % 2) == 0)
-	sata_dwc_dma_xfer_complete(ap, 1);
+		sata_dwc_dma_xfer_complete(ap, 1);
 
 	spin_unlock_irqrestore(&host->lock, flags);
 }