Document R-Car V3H (AKA R8A77980) SoC bindings.
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>