rockchip: Enable networking support on rock2 and firefly

Enable the various configuration option required to get the ethernet
interface up and running on Radxa Rock2 and Firefly.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2 files changed