net: gmac_rockchip: add support for px30

Add the glue code to allow the px30 variant of the Rockchip gmac
to provide network functionality.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed