Since some SoCs and boards do not hae extra asm/arch/gpio.h, introduce CONFIG_GPIO_EXTRA_HEADER instead of adding !define(CONFIG_ARCH_XXXX) in asm/gpio.h. Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Since some SoCs and boards do not hae extra asm/arch/gpio.h, introduce CONFIG_GPIO_EXTRA_HEADER instead of adding !define(CONFIG_ARCH_XXXX) in asm/gpio.h. Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>