arm64: dts: rockchip: add node for sd card to rk3568-evb1-v10

Add the SD card reader to the device tree of the RK3568 EVB1.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20210805120107.27007-7-michael.riesch@wolfvision.net


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