Revert "gpiolib: remove set but not used variable 'config'"

This reverts commit e5e42ad224.

This patch came on top of another patch that introduced a regression.
Revert it before addressing the culprit.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Bartosz Golaszewski 2020-02-03 14:03:47 +01:00
commit 91b4ea5fc5