Merge changes I73290a01,I092d1915,I58f0cd5c into msm-3.0

* changes:
  ASoC: WCD9310: Turn off HPH DAC's before accessory insertion
  ASoC: WCD9310: Pause headset polling before switching MBHC Mic Bias
  ASoC: WCD9310: Fix continous fake interrupt while partial headset insertion