ARM: dts: rockchip: Add rk3288 vyasa board

This patch adds initial support for rk3288 based
Vyasa board, which is made by Amarula Solutions.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>