uboot-imx

rockchip: rk3288: pinctrl: support more pins

The rgmii_pins node in rk3288.dtsi configures 15 pins. Increase the size
of the cell array to accomedate that, otherwise only the first 10 get
configured.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Simon Glass <sjg@chromium.org>