gpio: msic: Include the right header

This is a driver so only include <linux/gpio/driver.h>.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-msic.c

@@ -24,7 +24,7 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/intel_msic.h>