[PATCH gpio] gpio: vf610: fix compilation error

[Tariq Toukan <tariqt@xxxxxxxxxx>]

From: Leon Romanovsky <leonro@xxxxxxxxxx>

Fix compilation error by explicitly adding the missing include.

drivers/gpio/gpio-vf610.c: In function ‘vf610_gpio_direction_input’:
drivers/gpio/gpio-vf610.c:120:9: error: implicit declaration of function ‘pinctrl_gpio_direction_input’; did you mean ‘vf610_gpio_direction_input’? [-Werror=implicit-function-declaration]
  120 |  return pinctrl_gpio_direction_input(chip->base + gpio);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |         vf610_gpio_direction_input

Fixes: 30a35c07d9e9 ("gpio: vf610: drop the SOC_VF610 dependency for GPIO_VF610")
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
Signed-off-by: Tariq Toukan <tariqt@xxxxxxxxxx>
---
 drivers/gpio/gpio-vf610.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c
index 23cddb265a0d..9db42f6a2043 100644
--- a/drivers/gpio/gpio-vf610.c
+++ b/drivers/gpio/gpio-vf610.c
@@ -19,6 +19,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
+#include <linux/pinctrl/consumer.h>
 
 #define VF610_GPIO_PER_PORT		32
 
-- 
2.21.0