[PATCH -next] ASoC: AMD: Fix Kconfig warning without GPIOLIB

[YueHaibing]

While do rand build without GPIOLIB, we get Kconfig warning:\

WARNING: unmet direct dependencies detected for SND_SOC_MAX98357A
  Depends on [n]: SOUND [=y] && !UML && SND [=m] && SND_SOC [=m] && GPIOLIB [=n]
  Selected by [m]:
  - SND_SOC_AMD_CZ_DA7219MX98357_MACH [=m] && SOUND [=y] && !UML && SND [=m] && SND_SOC [=m] && SND_SOC_AMD_ACP [=m] && I2C [=y]

Add GPIOLIB dependency to fix this.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 sound/soc/amd/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig
index 9ca9214..5f40517 100644
--- a/sound/soc/amd/Kconfig
+++ b/sound/soc/amd/Kconfig
@@ -10,7 +10,7 @@ config SND_SOC_AMD_CZ_DA7219MX98357_MACH
 	select SND_SOC_MAX98357A
 	select SND_SOC_ADAU7002
 	select REGULATOR
-	depends on SND_SOC_AMD_ACP && I2C
+	depends on SND_SOC_AMD_ACP && I2C && GPIOLIB
 	help
 	 This option enables machine driver for DA7219 and MAX9835.
 
-- 
2.7.4