arm64: dts: rockchip: Add support for USB on helios64

This enables the USB hardware needed to access devices on the sockets J1
and J13.

Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210611081414.1448786-1-uwe@kleine-koenig.org


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