linux-phytec-fsl

ASoC: Remove unused soc_pm_waitq

The soc_pm_waitq waitqueue has been around as long as the ASoC framework
existed, but has never been used so far, so remove it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>