media: doc-rst: Fix broken references

Documentation and code was linking the old documentation at:
http://v4l2spec.bytesex.org/spec/x1904.htm

Signed-off-by: Ricardo Ribalda Delgado <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

Documentation/media/v4l-drivers/sh_mobile_ceu_camera.rst

···
 S_CROP
 ------
 
-The API at http://v4l2spec.bytesex.org/spec/x1904.htm says:
+The :ref:`V4L2 crop API <crop-scale>` says:
 
 "...specification does not define an origin or units. However by convention
 drivers should horizontally count unscaled samples relative to 0H."

drivers/media/platform/sh_vou.c

···
 
 	/*
 	 * No down-scaling. According to the API, current call has precedence:
-	 * http://v4l2spec.bytesex.org/spec/x1904.htm#AEN1954 paragraph two.
+	 * https://linuxtv.org/downloads/v4l-dvb-apis/uapi/v4l/crop.html#cropping-structures
 	 */
 	vou_adjust_input(&geo, vou_dev->std);