dt-bindings: media: imx258: inherit video-interface-devices properties

Update the IMX258 binding to inherit properties defined in the
video-interface-devices binding.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Olivier Benjamin <olivier.benjamin@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>