[media] smiapp: Print the index of the format descriptor

This makes constructing quirks easier.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/i2c/smiapp/smiapp-core.c

@@ -741,8 +741,8 @@ static int smiapp_get_mbus_formats(struct smiapp_sensor *sensor)
 		if (rval)
 			return rval;
 
-		dev_dbg(&client->dev, "bpp %d, compressed %d\n",
-			fmt >> 8, (u8)fmt);
+		dev_dbg(&client->dev, "%u: bpp %u, compressed %u\n",
+			i, fmt >> 8, (u8)fmt);
 
 		for (j = 0; j < ARRAY_SIZE(smiapp_csi_data_formats); j++) {
 			const struct smiapp_csi_data_format *f =