mtk-jpegenc: add stop cmd interface for jpgenc

Add stop cmd interface for jpgenc to stop stream
Signed-off-by: Nkyrie wu <kyrie.wu@mediatek.com>
Signed-off-by: Nirui wang <irui.wang@mediatek.com>
Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c

@@ -611,6 +611,9 @@ static const struct v4l2_ioctl_ops mtk_jpeg_enc_ioctl_ops = {
 	.vidioc_streamoff               = v4l2_m2m_ioctl_streamoff,
 
 	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+
+	.vidioc_encoder_cmd		= v4l2_m2m_ioctl_encoder_cmd,
+	.vidioc_try_encoder_cmd		= v4l2_m2m_ioctl_try_encoder_cmd,
 };
 
 static const struct v4l2_ioctl_ops mtk_jpeg_dec_ioctl_ops = {
@@ -1389,6 +1392,7 @@ static int mtk_jpeg_open(struct file *file)
 	} else {
 		v4l2_ctrl_handler_init(&ctx->ctrl_hdl, 0);
 	}
+
 	mtk_jpeg_set_default_params(ctx);
 	mutex_unlock(&jpeg->lock);
 	return 0;