arm64: dts: rockchip: add isp and sensors for Scarlet

Enable ISP and camera sensor ov2685 and ov5695 for Scarlet Chromebook

Verified with:
    make ARCH=arm64 dtbs_check

Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20201020193850.1460644-10-helen.koike@collabora.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>