gpio: fix sleep-while-atomic in gpiochip_remove

Move direct and indirect calls to gpiochip_remove_pin_ranges outside of
spin lock as they can end up taking a mutex in pinctrl_remove_gpio_range.

Note that the pin ranges are already added outside of the lock.

Fixes: 9ef0d6f7 ("gpiolib: call pin removal in chip removal function")
Fixes: f23f1516 ("gpiolib: provide provision to register pin ranges")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>