media: dt-bindings: Add OmniVision OV64A40

Add bindings for OmniVision OV64A40.

Co-developed-by: Lee Jackson <lee.jackson@arducam.com>
Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>