power: supply: max8998_charger: Fix module autoloading

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

Signed-off-by: Jinjie Ruan <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Sebastian Reichel <[e-mail]>

drivers/power/supply/max8998_charger.c

···
 	{ "max8998-battery", TYPE_MAX8998 },
 	{ }
 };
+MODULE_DEVICE_TABLE(platform, max8998_battery_id);
 
 static struct platform_driver max8998_battery_driver = {
 	.driver = {