ARM: dts: intel-ixp42x-welltech-epbx100: add ethernet node

Add ethernet node for the first port of intel-ixp42x-welltech-epbx100.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Link: https://lore.kernel.org/r/20221005105510.3512132-1-clabbe@baylibre.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230125075838.2801020-1-linus.walleij@linaro.org


Signed-off-by: Arnd Bergmann <arnd@arndb.de>