Add SH4 R2Dplus machine configured to test various U-Boot PCI ethernet options -- RTL8139, EEPRO100, AMD PCnet, DEC Tulip. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Rini <trini@konsulko.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>