xo15-ebook: convert to module_acpi_driver()

Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/platform/x86/xo15-ebook.c

@@ -170,16 +170,4 @@ static struct acpi_driver xo15_ebook_driver = {
 	},
 	.drv.pm = &ebook_switch_pm,
 };
-
-static int __init xo15_ebook_init(void)
-{
-	return acpi_bus_register_driver(&xo15_ebook_driver);
-}
-
-static void __exit xo15_ebook_exit(void)
-{
-	acpi_bus_unregister_driver(&xo15_ebook_driver);
-}
-
-module_init(xo15_ebook_init);
-module_exit(xo15_ebook_exit);
+module_acpi_driver(xo15_ebook_driver);