media: imx: TODO: Remove items that are already supported

Video capture has been successfully tested using an OV5640 parallel
sensor on a imx6ull-evk board at a 640x480 resolution and UYVY8_2X8
format.

Remove the two items that are no longer pending.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>