hwmon: (gsc-hwmon) fix module autoloading

Add MODULE_DEVICE_TABLE(), so modules could be properly autoloaded
based on the alias from of_device_id table.

Signed-off-by: Liao Chen <[e-mail]>
Message-ID: <[e-mail]>
Signed-off-by: Guenter Roeck <[e-mail]>

drivers/hwmon/gsc-hwmon.c

···
 	{ .compatible = "gw,gsc-adc", },
 	{}
 };
+MODULE_DEVICE_TABLE(of, gsc_hwmon_of_match);
 
 static struct platform_driver gsc_hwmon_driver = {
 	.driver = {