Replace subsys initcall by module initcall level. Since pinctrl
driver is already launched before gpio driver. It's unnecessary
to set gpio driver in subsys init call level.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>