rockchip: timer: dw-apb-timer: fix whitespace in U_BOOT_DRIVER structure

The line with .of_to_plat in the U_BOOT_DRIVER structure
of dw-apb-timer.c is not aligned with the rest.
Add an extra TAB to fix the whitespace.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/timer/dw-apb-timer.c b/drivers/timer/dw-apb-timer.c
index f722697..10f0a9f 100644
--- a/drivers/timer/dw-apb-timer.c
+++ b/drivers/timer/dw-apb-timer.c
@@ -120,7 +120,7 @@
 	.ops		= &dw_apb_timer_ops,
 	.probe		= dw_apb_timer_probe,
 	.of_match	= dw_apb_timer_ids,
-	.of_to_plat = dw_apb_timer_of_to_plat,
+	.of_to_plat	= dw_apb_timer_of_to_plat,
 	.remove		= dw_apb_timer_remove,
 	.priv_auto	= sizeof(struct dw_apb_timer_priv),
 	.plat_auto	= sizeof(struct dw_apb_timer_plat),