v4l: vsp1: Move partition rectangles to struct and operate directly

As we develop the partition algorithm, we need to store more information
per partition to describe the phase and other parameters.

To keep this data together, further abstract the existing v4l2_rect
into a partition specific structure

When generating the partition windows, operate directly on the partition
struct rather than copying and duplicating the processed data

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
5 files changed