In the preparation of getting completely rid of static gpiobase
allocation in the future, emit a warning in drivers still doing so.
Signed-off-by: NChristophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: NBartosz Golaszewski <bartosz.golaszewski@linaro.org>