Add Rockchip DWMAC controllers, which are based on snps,dwmac.
Some of the SoCs require up to eight clocks, so maxItems
for clocks and clock-names need to be increased.
Signed-off-by: NEzequiel Garcia <ezequiel@collabora.com>
Reviewed-by: NDavid Wu <david.wu@rock-chips.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>