pinctrl: Include <linux/gpio/driver.h> nothing else

These drivers are GPIO drivers, and the do not need to use the
legacy header in <linux/gpio.h>, go directly for
<linux/gpio/driver.h> instead.

Replace any use of GPIOF_* with 0/1, these flags are for
consumers, not drivers.

Get rid of a few gpio_to_irq() users that was littering
around the place, use local callbacks or avoid using it at
all.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.h b/drivers/pinctrl/samsung/pinctrl-samsung.h
index e571bbd..379f34a 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.h
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.h
@@ -19,7 +19,7 @@
 #include <linux/pinctrl/consumer.h>
 #include <linux/pinctrl/machine.h>
 
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 
 /**
  * enum pincfg_type - possible pin configuration types supported.