dm: treewide: Rename ofdata_to_platdata() to of_to_plat()

This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/gpio/intel_ich6_gpio.c b/drivers/gpio/intel_ich6_gpio.c
index cfb2dda..add13d8 100644
--- a/drivers/gpio/intel_ich6_gpio.c
+++ b/drivers/gpio/intel_ich6_gpio.c
@@ -93,7 +93,7 @@
 	return 0;
 }
 
-static int gpio_ich6_ofdata_to_platdata(struct udevice *dev)
+static int gpio_ich6_of_to_plat(struct udevice *dev)
 {
 	struct ich6_bank_platdata *plat = dev_get_plat(dev);
 	u32 gpiobase;
@@ -234,7 +234,7 @@
 	.id	= UCLASS_GPIO,
 	.of_match = intel_ich6_gpio_ids,
 	.ops	= &gpio_ich6_ops,
-	.ofdata_to_platdata	= gpio_ich6_ofdata_to_platdata,
+	.of_to_plat	= gpio_ich6_of_to_plat,
 	.probe	= ich6_gpio_probe,
 	.priv_auto	= sizeof(struct ich6_bank_priv),
 	.plat_auto	= sizeof(struct ich6_bank_platdata),