media: dt-bindings: sony,imx214: Deprecate property clock-frequency

Deprecate the clock-frequency property in favor of assigned-clock-rates.

While at it, re-order properties according to coding style and fix the
link-frequency in the example.  See commit acc29451 ("media: i2c:
imx214: Fix link frequency validation").

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>