The mxs gpio controller does not only have a mask register to mask
interrupts, but also enable/disable registers. Use the enable/disable
registers rather than the mask register. This does not have any
advantage for now, but makes the next patch simpler.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>