ASoC: zl38060: Remove spurious gpiolib select

ASoC: zl38060: Remove spurious gpiolib select

[ Upstream commit 8e70aaae32b72d3088d18a3447b67112b3f5979a ]

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/20220202192333.3655269-6-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 0de2cc3707b6 ("ASoC: zl38060 add gpiolib dependency")
Signed-off-by: Sasha Levin <sashal@kernel.org>