usb: musb: ux500: use module_platform_driver macro

This patch removes some code duplication by using
module_platform_driver.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/ux500.c

@@ -219,15 +219,4 @@ static struct platform_driver ux500_driver = {
 MODULE_DESCRIPTION("UX500 MUSB Glue Layer");
 MODULE_AUTHOR("Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>");
 MODULE_LICENSE("GPL v2");
-
-static int __init ux500_init(void)
-{
-	return platform_driver_register(&ux500_driver);
-}
-module_init(ux500_init);
-
-static void __exit ux500_exit(void)
-{
-	platform_driver_unregister(&ux500_driver);
-}
-module_exit(ux500_exit);
+module_platform_driver(ux500_driver);