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/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index 7625d43..344749b 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -58,7 +58,7 @@
 	 * will produce a bad BDF>
 	 *
 	 * A common cause of this problem is that this function is called in the
-	 * ofdata_to_platdata() method of @dev. Accessing the PCI bus in that
+	 * of_to_plat() method of @dev. Accessing the PCI bus in that
 	 * method is not allowed, since it has not yet been probed. To fix this,
 	 * move that access to the probe() method of @dev instead.
 	 */