serial: Add missing MODULE_DEVICE_TABLE

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Link: https://lore.kernel.org/r/20210410035048.11466-1-cuibixuan@huawei.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/tegra-tcu.c

@@ -282,6 +282,7 @@ static const struct of_device_id tegra_tcu_match[] = {
 	{ .compatible = "nvidia,tegra194-tcu" },
 	{ }
 };
+MODULE_DEVICE_TABLE(of, tegra_tcu_match);
 
 static struct platform_driver tegra_tcu_driver = {
 	.driver = {