Documentation: gpio: Fix return type of gpiod_set_raw_array_value*()

The return type of gpiod_set_raw_array_value() and
gpiod_set_raw_array_value_cansleep() was changed from void to int, but
the doc update was forgotten.

Fixes: 3027743f ("gpio: Remove VLA from gpiolib")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/driver-api/gpio/consumer.rst

@@ -344,7 +344,7 @@ The following functions get or set the values of an array of GPIOs::
 				   struct gpio_desc **desc_array,
 				   struct gpio_array *array_info,
 				   unsigned long *value_bitmap)
-	void gpiod_set_raw_array_value(unsigned int array_size,
+	int gpiod_set_raw_array_value(unsigned int array_size,
 				      struct gpio_desc **desc_array,
 				      struct gpio_array *array_info,
 				      unsigned long *value_bitmap)
@@ -352,7 +352,7 @@ The following functions get or set the values of an array of GPIOs::
 					    struct gpio_desc **desc_array,
 					    struct gpio_array *array_info,
 					    unsigned long *value_bitmap)
-	void gpiod_set_raw_array_value_cansleep(unsigned int array_size,
+	int gpiod_set_raw_array_value_cansleep(unsigned int array_size,
 					       struct gpio_desc **desc_array,
 					       struct gpio_array *array_info,
 					       unsigned long *value_bitmap)