arm64: dts: rockchip: Add PCIEe v3 nodes to ODROID-M1

Add nodes to ODROID-M1 to support PCIe v3 on the M2 slot.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Dan Johansen <strit@manjaro.org>
Link: https://lore.kernel.org/r/20220930051246.391614-13-aurelien@aurel32.net


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