iommu: rockchip: Add support for iommu v2

This second version of the hardware block has a different bits
mapping for page table entries.
Add the ops matching to this new mapping.
Define a new compatible to distinguish it from the first version.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20210604164441.798362-5-benjamin.gaignard@collabora.com


Signed-off-by: Joerg Roedel <jroedel@suse.de>