dt-bindings: iommu: renesas,ipmmu-vmsa: add r8a779a0 support

Add support for r8a779a0 (R-Car V3U).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20210907083020.907648-2-yoshihiro.shimoda.uh@renesas.com


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