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/spi/ich.c b/drivers/spi/ich.c
index b42b536..4c01ec8 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -945,7 +945,7 @@
 	return 0;
 }
 
-static int ich_spi_ofdata_to_platdata(struct udevice *dev)
+static int ich_spi_of_to_plat(struct udevice *dev)
 {
 	struct ich_spi_platdata *plat = dev_get_plat(dev);
 
@@ -1004,7 +1004,7 @@
 	.id	= UCLASS_SPI,
 	.of_match = ich_spi_ids,
 	.ops	= &ich_spi_ops,
-	.ofdata_to_platdata = ich_spi_ofdata_to_platdata,
+	.of_to_plat = ich_spi_of_to_plat,
 	.plat_auto	= sizeof(struct ich_spi_platdata),
 	.priv_auto	= sizeof(struct ich_spi_priv),
 	.child_pre_probe = ich_spi_child_pre_probe,