gpiolib: Fix the error path order in gpiochip_add_data_with_key()

After shuffling the code, error path wasn't updated correctly.
Fix it here.

Fixes: 2f4133bb

 ("gpiolib: No need to call gpiochip_remove_pin_ranges() twice")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>