cdx: controller: Do not open-code module_platform_driver()

Replace standard platform_driver_register() boilerplate with
module_platform_driver() to make code smaller.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Acked-by: Nikhil Agarwal <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/cdx/controller/cdx_controller.c

···
 	.remove = xlnx_cdx_remove,
 };
 
-static int __init cdx_controller_init(void)
-{
-	int ret;
-
-	ret = platform_driver_register(&cdx_pdriver);
-	if (ret)
-		pr_err("platform_driver_register() failed: %d\n", ret);
-
-	return ret;
-}
-
-static void __exit cdx_controller_exit(void)
-{
-	platform_driver_unregister(&cdx_pdriver);
-}
-
-module_init(cdx_controller_init);
-module_exit(cdx_controller_exit);
+module_platform_driver(cdx_pdriver);
 
 MODULE_AUTHOR("AMD Inc.");
 MODULE_DESCRIPTION("CDX controller for AMD devices");