ASoC: rt9120: Remove spurious gpiolib select

The usage of GPIOs is optional in the code so don't force on gpiolib when
building it, avoiding warnings in randconfigs.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220202192333.3655269-3-broonie@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -1348,7 +1348,6 @@ config SND_SOC_RT9120
 	tristate "Richtek RT9120 Stereo Class-D Amplifier"
 	depends on I2C
 	select REGMAP_I2C
-	select GPIOLIB
 	help
 	  Enable support for Richtek RT9120 20W, stereo, inductor-less,
 	  high-efficiency Class-D audio amplifier.