video: convert drivers/video/* to use module_platform_driver()

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

Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Alexey Charkov <alchark@gmail.com>
Acked-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
diff --git a/drivers/video/pxa168fb.c b/drivers/video/pxa168fb.c
index 18ead6f..8384b94 100644
--- a/drivers/video/pxa168fb.c
+++ b/drivers/video/pxa168fb.c
@@ -832,17 +832,7 @@
 	.remove		= __devexit_p(pxa168fb_remove),
 };
 
-static int __init pxa168fb_init(void)
-{
-	return platform_driver_register(&pxa168fb_driver);
-}
-module_init(pxa168fb_init);
-
-static void __exit pxa168fb_exit(void)
-{
-	platform_driver_unregister(&pxa168fb_driver);
-}
-module_exit(pxa168fb_exit);
+module_platform_driver(pxa168fb_driver);
 
 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com> "
 	      "Green Wan <gwan@marvell.com>");