gpio: twl4030: Include the right header

This is a GPIO driver so include only <linux/gpio/driver.h>.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-twl4030.c

@@ -30,7 +30,7 @@
 #include <linux/interrupt.h>
 #include <linux/kthread.h>
 #include <linux/irq.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/platform_device.h>
 #include <linux/of.h>
 #include <linux/irqdomain.h>