arm64: dts: rockchip: add the vdd_cpu regulator to rk3568-evb1-v10

The TCS4525 voltage regulator provides the vdd_cpu on the Rockchip
RK3568 EVB1. Add the device tree node and connect it to the CPU
nodes.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20220223162054.1626257-1-michael.riesch@wolfvision.net


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