mfd: si476x: Fix i2c warning

drivers/mfd/si476x-i2c.c: In function ‘si476x_core_drain_rds_fifo’:
drivers/mfd/si476x-i2c.c:391:4: warning: field width specifier ‘*’ expects
+argument of type ‘int’, but argument 4 has type ‘long unsigned int’ [-Wformat]
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/si476x-i2c.c

@@ -389,7 +389,7 @@ static void si476x_core_drain_rds_fifo(struct work_struct *work)
 			kfifo_in(&core->rds_fifo, report.rds,
 				 sizeof(report.rds));
 			dev_dbg(&core->client->dev, "RDS data:\n %*ph\n",
-				sizeof(report.rds), report.rds);
+				(int)sizeof(report.rds), report.rds);
 		}
 		dev_dbg(&core->client->dev, "Drrrrained!\n");
 		wake_up_interruptible(&core->rds_read_queue);