gpio: davinci: Remove duplicate assignment of of_gpio_n_cells

The of_gpio_n_cells default is 2 when ->of_xlate() callback is
not defined. No need to assign it explicitly in the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

drivers/gpio/gpio-davinci.c

@@ -252,7 +252,6 @@ static int davinci_gpio_probe(struct platform_device *pdev)
 	chips->chip.base = pdata->no_auto_base ? pdata->base : -1;
 
 #ifdef CONFIG_OF_GPIO
-	chips->chip.of_gpio_n_cells = 2;
 	chips->chip.parent = dev;
 	chips->chip.request = gpiochip_generic_request;
 	chips->chip.free = gpiochip_generic_free;