i2c: stu300: Fix module autoload for OF platform driver

This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: NLuis de Bethencourt <luisbg@osg.samsung.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-stu300.c

@@ -977,6 +977,7 @@ static const struct of_device_id stu300_dt_match[] = {
 	{ .compatible = "st,ddci2c" },
 	{},
 };
+MODULE_DEVICE_TABLE(of, stu300_dt_match);
 
 static struct platform_driver stu300_i2c_driver = {
 	.driver = {