dt-bindings: iommu: renesas,ipmmu-vmsa: add r8a779h0 support

Document support for the I/O Memory Management Unit (IPMMU) on the
Renesas R-Car V4M (R8A779H0) SoC.

Signed-off-by: Thanh Le <thanh.le.xv@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/13643259be4e8a8e30632de622ad7c685dbb7c61.1713526852.git.geert+renesas@glider.be
Signed-off-by: Joerg Roedel <jroedel@suse.de>