Implement .request() and .free() callbacks on the GPIO chips to
inform pinctrl when a GPIO is requested or freed.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Tested-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>