mfd: Fix cs5535 warning on x86-64

ARRAY_SIZE() returns size_t; use %zu instead of %d so that we don't
get warnings on x86-64.
Signed-off-by: NAndres Salomon <dilinger@queued.net>
Acked-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/mfd/cs5535-mfd.c

@@ -103,7 +103,7 @@ static int __devinit cs5535_mfd_probe(struct pci_dev *pdev,
 		goto err_disable;
 	}
 
-	dev_info(&pdev->dev, "%d devices registered.\n",
+	dev_info(&pdev->dev, "%zu devices registered.\n",
 			ARRAY_SIZE(cs5535_mfd_cells));
 
 	return 0;