mei: use unified format for printing mei message header

Introduce MEI_HDR_FMT and MEI_HDR_PRM macros.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/interface.c b/drivers/misc/mei/interface.c
index 21ccbe6..17d93f7 100644
--- a/drivers/misc/mei/interface.c
+++ b/drivers/misc/mei/interface.c
@@ -127,9 +127,7 @@
 	int i;
 	int empty_slots;
 
-	dev_dbg(&dev->pdev->dev,
-			"mei_write_message header=%08x.\n",
-			*((u32 *) header));
+	dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(header));
 
 	empty_slots = mei_hbuf_empty_slots(dev);
 	dev_dbg(&dev->pdev->dev, "empty slots = %hu.\n", empty_slots);