gpio: Include linux/gpio.h instead of asm/gpio.h

Most arches have an asm/gpio.h that merely includes linux/gpio.h.  The
others select ARCH_HAVE_CUSTOM_GPIO_H, and when that's selected,
linux/gpio.h includes asm/gpio.h.

Therefore, code should include linux/gpio.h instead of including asm/gpio.h
directly.

Remove includes of asm/gpio.h, adding an include of linux/gpio.h when
necessary.

This is a follow-on to 7563bbf89d ("gpiolib/arches: Centralise
bolierplate asm/gpio.h").

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/video/fbdev/atmel_lcdfb.c

@@ -26,8 +26,6 @@
 #include <linux/regulator/consumer.h>
 #include <video/videomode.h>
 
-#include <asm/gpio.h>
-
 #include <video/atmel_lcdc.h>
 
 struct atmel_lcdfb_config {

drivers/video/fbdev/omap/lcd_h3.c

@@ -22,8 +22,8 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/i2c/tps65010.h>
+#include <linux/gpio.h>
 
-#include <asm/gpio.h>
 #include "omapfb.h"
 
 #define MODULE_NAME	"omapfb-lcd_h3"

drivers/video/fbdev/omap/lcd_osk.c

@@ -22,8 +22,7 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
-
-#include <asm/gpio.h>
+#include <linux/gpio.h>
 
 #include <mach/hardware.h>
 #include <mach/mux.h>

drivers/video/fbdev/omap/lcd_palmtt.c

@@ -28,8 +28,8 @@ GPIO13 - screen blanking
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
 
-#include <asm/gpio.h>
 #include "omapfb.h"
 
 static int palmtt_panel_init(struct lcd_panel *panel,