media: doc: Replace symbol for V4L2_CTRL_TYPE_H264_PRED_WEIGHTS

When V4L2_CTRL_TYPE_H264_PRED_WEIGHTS was added, adding a replace
symbol directive in videodev2.h.rst.exceptions was missed.

Now that the control type is destaged, it's important to fix this.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/userspace-api/media/videodev2.h.rst.exceptions

@@ -139,6 +139,7 @@ replace symbol V4L2_CTRL_TYPE_MPEG2_QUANTIZATION :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_H264_SPS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_H264_PPS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_H264_SCALING_MATRIX :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_H264_PRED_WEIGHTS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_H264_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_H264_DECODE_PARAMS :c:type:`v4l2_ctrl_type`
 replace symbol V4L2_CTRL_TYPE_HEVC_SPS :c:type:`v4l2_ctrl_type`