mfd: max14577: Cleanup an error message

"pdata" is a NULL not an ERR_PTR so there is no use printing it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/max14577.c

@@ -96,8 +96,7 @@ static int max14577_i2c_probe(struct i2c_client *i2c,
 	}
 
 	if (!pdata) {
-		dev_err(&i2c->dev, "No platform data found: %ld\n",
-				PTR_ERR(pdata));
+		dev_err(&i2c->dev, "No platform data found.\n");
 		return -EINVAL;
 	}