gpio: amd8111: Include proper header

This driver has no business including <linux/gpio.h>, it is a
driver so include <linux/gpio/driver.h>.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-amd8111.c

@@ -28,7 +28,7 @@
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/pci.h>
 #include <linux/spinlock.h>