ARM: pxa: dts: add gpio-ranges to gpio controller

The PXA GPIO driver calls out to the pinctrl driver for claiming pins
unless the config has CONFIG_PINCTRL unset. IOW, if a pinctrl driver is
active, it must be visible to the GPIO driver.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>