In some boards is requred to change the ephy mdio base address.
This patch add of property "mediatek,ephy-base-address" in gsw
part, which allows to change ephy base address.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
[fixed indentation in header file]
Signed-off-by: Petr Štetiar <ynezz@true.cz>