pinctrl: samsung: Do not mention legacy API in the code

Replace mentioning of legacy API by the latest one.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230112134849.59534-1-andriy.shevchenko@linux.intel.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/samsung/pinctrl-samsung.c

@@ -649,7 +649,7 @@ static int samsung_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
 }
 
 /*
- * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
+ * gpiod_to_irq() callback function. Creates a mapping between a GPIO pin
  * and a virtual IRQ, if not already present.
  */
 static int samsung_gpio_to_irq(struct gpio_chip *gc, unsigned offset)