usb: renesas_usbhs: silence a gcc warning

Gcc complains about this printk:
drivers/usb/renesas_usbhs/mod_gadget.c:188:3: warning: format ‘%x’
	expects argument of type ‘unsigned int’, but argument 3 has type
	‘dma_addr_t’ [-Wformat]
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/renesas_usbhs/mod_gadget.c

@@ -185,7 +185,7 @@ static int usbhsg_dma_map(struct device *dev,
 	}
 
 	if (dma_mapping_error(dev, pkt->dma)) {
-		dev_err(dev, "dma mapping error %x\n", pkt->dma);
+		dev_err(dev, "dma mapping error %llx\n", (u64)pkt->dma);
 		return -EIO;
 	}