arm64: dts: rockchip: Remove system-power-controller from pmic on Odroid Go Advance

This fixes a poweroff issue when this is supposed to happen
via PSCI.

Signed-off-by: Maciej Matuszczyk <maccraft123mc@gmail.com>
Link: https://lore.kernel.org/r/20201023181629.119727-1-maccraft123mc@gmail.com


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