Integrate linux-guf/gpio_sysfs_wo_expert
Commit: seco-ne/kernel/linux-guf@1a1c9cce
gpio: Kconfig: make GPIO_SYSFS config always visible
To reduce boot time, we have disabled CONFIG_EXPERT and CONFIG_DEBUG_KERNEL in seco-mx6 defconfig.
However, for backward compatibility, we need to leave CONFIG_GPIO_SYSFS enabled. For this, the config should be visible even when expert mode is disabled.