ASoC: OMAP machines: Remove soc_dapm_sync() call from init

No need to call soc_dapm_sync at init time.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Anuj Aggarwal <anuj.aggarwal@ti.com>
Cc: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Gražvydas Ignotas <notasas@gmail.com>
Cc: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>