[media] V4L: Merge struct v4l2_async_subdev_list with struct v4l2_subdev

By integrating the v4l2-async API internals a bit more with
the core overall the v4l2-async code becomes a bit simpler
and easier to follow.
Acked-and-tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index 8fac8ea..7683569 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -62,25 +62,12 @@
 };
 
 /**
- * v4l2_async_subdev_list - provided by subdevices
- * @list:	links struct v4l2_async_subdev_list objects to a global list
- *		before probing, and onto notifier->done after probing
- * @asd:	pointer to respective struct v4l2_async_subdev
- * @notifier:	pointer to managing notifier
- */
-struct v4l2_async_subdev_list {
-	struct list_head list;
-	struct v4l2_async_subdev *asd;
-	struct v4l2_async_notifier *notifier;
-};
-
-/**
  * v4l2_async_notifier - v4l2_device notifier data
  * @num_subdevs:number of subdevices
  * @subdevs:	array of pointers to subdevice descriptors
  * @v4l2_dev:	pointer to struct v4l2_device
  * @waiting:	list of struct v4l2_async_subdev, waiting for their drivers
- * @done:	list of struct v4l2_async_subdev_list, already probed
+ * @done:	list of struct v4l2_subdev, already probed
  * @list:	member in a global list of notifiers
  * @bound:	a subdevice driver has successfully probed one of subdevices
  * @complete:	all subdevices have been probed successfully