media: mediatek: vcodec: Remove trailing space after \n newline

There is a extraneous space after a newline in a mtk_venc_debug message.
Remove it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>