platform-drivers-x86: convert drivers/platform/x86/* to use module_platform_driver()

This patch converts the drivers in drivers/platform/x86/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: Hong Liu <hong.liu@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Cc: Daniel Drake <dsd@laptop.org>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/platform/x86/intel_mid_thermal.c b/drivers/platform/x86/intel_mid_thermal.c
index ccd7b1f..e4cc992 100644
--- a/drivers/platform/x86/intel_mid_thermal.c
+++ b/drivers/platform/x86/intel_mid_thermal.c
@@ -565,18 +565,7 @@
 	.id_table = therm_id_table,
 };
 
-static int __init mid_thermal_module_init(void)
-{
-	return platform_driver_register(&mid_thermal_driver);
-}
-
-static void __exit mid_thermal_module_exit(void)
-{
-	platform_driver_unregister(&mid_thermal_driver);
-}
-
-module_init(mid_thermal_module_init);
-module_exit(mid_thermal_module_exit);
+module_platform_driver(mid_thermal_driver);
 
 MODULE_AUTHOR("Durgadoss R <durgadoss.r@intel.com>");
 MODULE_DESCRIPTION("Intel Medfield Platform Thermal Driver");