arm64: dts: rockchip: enable hdmi on rk3399-puma-haikou

The Puma-haikou combo supports hdmi output, so enable the hdmi controller
and vop controllers on it.

Signed-off-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
Cc: linux-rockchip@lists.infradead.org
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>