arm64: dts: rockchip: hook up camera on px30-evb

Enable the isp and csi phy on px30-evb and connect it to the board's
ov5695 camera.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20210830141318.66744-2-heiko@sntech.de


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