mfd: Use platform_device_add_data to set pcf50633 regulator platform data

Platform devices allocated with platform_device_alloc should use
platform_device_add_data to set the platform data, because kfree will be called
on the platform_data when the device is released.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NPaul Fertser <fercerpav@gmail.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/mfd/pcf50633-core.c

@@ -611,7 +611,8 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
 		}
 
 		pdev->dev.parent = pcf->dev;
-		pdev->dev.platform_data = &pdata->reg_init_data[i];
+		platform_device_add_data(pdev, &pdata->reg_init_data[i],
+					sizeof(pdata->reg_init_data[i]));
 		dev_set_drvdata(&pdev->dev, pcf);
 		pcf->regulator_pdev[i] = pdev;