The of_gpio.h header isn't needed, don't include it.
Reported-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>