[PATCH] platform/x86: Fix PCENGINES_APU2 Kconfig warning

[YueHaibing]

Fix Kconfig warning for PCENGINES_APU2 symbol:

WARNING: unmet direct dependencies detected for GPIO_AMD_FCH
  Depends on [n]: GPIOLIB [=n] && HAS_IOMEM [=y]
  Selected by [y]:
  - PCENGINES_APU2 [=y] && X86 [=y] && X86_PLATFORM_DEVICES [=y] && INPUT [=y] && INPUT_KEYBOARD [=y] && LEDS_CLASS [=y]

WARNING: unmet direct dependencies detected for KEYBOARD_GPIO_POLLED
  Depends on [n]: !UML && INPUT [=y] && INPUT_KEYBOARD [=y] && GPIOLIB [=n]
  Selected by [y]:
  - PCENGINES_APU2 [=y] && X86 [=y] && X86_PLATFORM_DEVICES [=y] && INPUT [=y] && INPUT_KEYBOARD [=y] && LEDS_CLASS [=y]

Add GPIOLIB dependency to fix it.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Fixes: f8eb0235f659 ("x86: pcengines apuv2 gpio/leds/keys platform driver")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/platform/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 8c8bd45..2409d26 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1322,7 +1322,7 @@ config HUAWEI_WMI
 
 config PCENGINES_APU2
 	tristate "PC Engines APUv2/3 front button and LEDs driver"
-	depends on INPUT && INPUT_KEYBOARD
+	depends on INPUT && INPUT_KEYBOARD && GPIOLIB
 	depends on LEDS_CLASS
 	select GPIO_AMD_FCH
 	select KEYBOARD_GPIO_POLLED
-- 
2.7.4