gpio: xra1403: Remove unused of_gpio.h inclusion

of_gpio.h shouldn't be used in GPIO drivers. Remove it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Author: andy-shev

drivers/gpio/gpio-xra1403.c

@@ -11,7 +11,6 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/of_device.h>
-#include <linux/of_gpio.h>
 #include <linux/seq_file.h>
 #include <linux/spi/spi.h>
 #include <linux/regmap.h>