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/serial/serial_bcm283x_mu.c b/drivers/serial/serial_bcm283x_mu.c
index 1d64496..a53288d 100644
--- a/drivers/serial/serial_bcm283x_mu.c
+++ b/drivers/serial/serial_bcm283x_mu.c
@@ -167,7 +167,7 @@
 		return -ENODEV;
 
 	/*
-	 * Read the ofdata here rather than in an ofdata_to_platdata() method
+	 * Read the ofdata here rather than in an of_to_plat() method
 	 * since we need the soc simple-bus to be probed so that the 'ranges'
 	 * property is used.
 	 */