Patches to support the SoC's GPIO controller for RTL930x and RTL931x
devices have been accepted upstream. Replace the current preliminary
patch with the upstream ones, excluding devictree binding changes.
The updated patches add GPIO IRQ balancing support on RTL930x, but this
cannot be used until these devices also support SMP.
Signed-off-by: Sander Vanheule <sander@svanheule.net>