Most Rockchip SoCs have a DesignWare HS OTG USB 2.0 controller, enable
the driver for the Rockchip USB 2.0 PHY to make that functional.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>