pinctrl: lantiq: Add missing header(s)

Do not imply that some of the generic headers may be always included.
Instead, include explicitly what we are direct user of.

While at it, sort headers alphabetically.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/pinctrl/pinctrl-falcon.c

@@ -7,17 +7,18 @@
  *  Copyright (C) 2012 John Crispin <john@phrozen.org>
  */
 
+#include <linux/err.h>
+#include <linux/export.h>
 #include <linux/gpio/driver.h>
 #include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_platform.h>
 #include <linux/of_address.h>
 #include <linux/of_gpio.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
 
 #include "pinctrl-lantiq.h"
 

drivers/pinctrl/pinctrl-lantiq.c

@@ -6,12 +6,13 @@
  *  Copyright (C) 2012 John Crispin <john@phrozen.org>
  */
 
-#include <linux/module.h>
 #include <linux/device.h>
 #include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
+#include <linux/module.h>
 #include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
 
 #include "pinctrl-lantiq.h"
 

drivers/pinctrl/pinctrl-lantiq.h

@@ -10,11 +10,12 @@
 #define __PINCTRL_LANTIQ_H
 
 #include <linux/clkdev.h>
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinconf.h>
-#include <linux/pinctrl/pinmux.h>
+
 #include <linux/pinctrl/consumer.h>
 #include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
 
 #include "core.h"