arm64: dts: rockchip: Add rk3576-armsom-sige5 board

Add board file for the rk3576 based ArmSoM Sige5 board. While the hardware
offers plenty of peripherals and connectivity this basic implementation
just handles things required to successfully boot Linux from SD card and
connect via UART or Ethernet.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Link: https://lore.kernel.org/r/20240903152308.13565-10-detlev.casanova@collabora.com


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