media: Fix indentation issues introduced by subdev-wide state struct

Commit 0d346d2a ("media: v4l2-subdev: add subdev-wide state struct")
applied a large media tree-wide change produced by coccinelle. It was so
large that a set of identical indentation issues went unnoticed during
review. Fix them.

While at it, and because it's easy to review both changes together, add
a trailing comma for the last (and only) struct member initialization of
the related structures, to avoid future changes should new fields need
to be initialized.

Fixes: 0d346d2a

 ("media: v4l2-subdev: add subdev-wide state struct")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>