media: mediatek: jpeg: support 34bits

The HW iommu is able to support a 34-bit iova address-space (16GB),
enable this feature for the encoder/decoder driver by shifting the
address by two bits and setting the extended address registers.

Signed-off-by: Jianhua Lin <jianhua.lin@mediatek.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>