arm64: dts: rockchip: fix spdif@fe460000 ordering on rk356x

Move the node to its correct position, based on its
mmio-address.

Link: https://lore.kernel.org/all/20221030193708.1671069-1-heiko@sntech.de


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