gpio: rcar: fix gpio_rcar_of_table

The device table needs to be terminated with an empty element.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Simon Horman <horms+renesas@verge.net.au>
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index 5a693dd..f332753 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -437,6 +437,7 @@
 	{
 		.compatible = "renesas,gpio-rcar",
 	},
+	{ },
 };
 
 MODULE_DEVICE_TABLE(of, gpio_rcar_of_table);