i2c: davinci: Fix bad dev_get_platdata() conversion

commit 6d4028c644e (i2c: use dev_get_platdata()) did a bad conversion
of this one case:

  drivers/i2c/busses/i2c-davinci.c: In function 'davinci_i2c_probe':
  drivers/i2c/busses/i2c-davinci.c:665:2: warning: passing argument 1 of
	'dev_get_platdata' from incompatible pointer type [enabled by default]

Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Olof Johansson <olof@lixom.net>

drivers/i2c/busses/i2c-davinci.c

@@ -662,7 +662,7 @@ static int davinci_i2c_probe(struct platform_device *pdev)
 #endif
 	dev->dev = &pdev->dev;
 	dev->irq = irq->start;
-	dev->pdata = dev_get_platdata(&dev->dev);
+	dev->pdata = dev_get_platdata(&pdev->dev);
 	platform_set_drvdata(pdev, dev);
 
 	if (!dev->pdata && pdev->dev.of_node) {