uboot-imx

ARM: tegra: enable Ethernet on p2771-0000

Enable the Ethernet device in DT, provide board-specific configuration,
and enable the driver in Kconfig.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>