drm/v3d: convert to use module_platform_driver

Get rid of boilerplate code by using module_platform_driver macro
for v3d_drm.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200810125931.186456-1-miaoqinglang@huawei.com

drivers/gpu/drm/v3d/v3d_drv.c

@@ -358,18 +358,7 @@ static struct platform_driver v3d_platform_driver = {
 	},
 };
 
-static int __init v3d_drm_register(void)
-{
-	return platform_driver_register(&v3d_platform_driver);
-}
-
-static void __exit v3d_drm_unregister(void)
-{
-	platform_driver_unregister(&v3d_platform_driver);
-}
-
-module_init(v3d_drm_register);
-module_exit(v3d_drm_unregister);
+module_platform_driver(v3d_platform_driver);
 
 MODULE_ALIAS("platform:v3d-drm");
 MODULE_DESCRIPTION("Broadcom V3D DRM Driver");