ARM: dts: add Kverneland TGO board

VICTGO is the Kverneland TGO IsoBus universal terminal for agricultural
applications on tractors

Co-Developed-by: David Jander <david@protonic.nl>
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>