mtd: denali: convert to generic DMA API

Rather than using the PCI specific DMA API, convert to the generic
DMA API so that we can use the Denali NAND controller on other bus
types.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h
index 3918bcb..9b875fd 100644
--- a/drivers/mtd/nand/denali.h
+++ b/drivers/mtd/nand/denali.h
@@ -732,7 +732,7 @@
 	int status;
 	int platform;
 	struct nand_buf buf;
-	struct pci_dev *dev;
+	struct device *dev;
 	int total_used_banks;
 	uint32_t block;  /* stored for future use */
 	uint16_t page;