arm64: dts: rockchip: move rk3562 pinctrl node outside the soc node

The non-mmio pinctrl node is not supposed to be inside the soc simple-bus
as dtc points out:

../arch/arm64/boot/dts/rockchip/rk3562.dtsi:1115.20-1181.5: Warning (simple_bus_reg): /soc/pinctrl: missing or empty reg/ranges property

Move the pinctrl node outside and adapt the indentation.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250518220449.2722673-7-heiko@sntech.de