ASoC: wcd9xxx: Use CM headset detection code"

Change-Id: Ib2375fe19ec02735ca27d29fe9fc7e03b7c48403
asoc: msm: Adjust MBHC thresholds

 * Revert Oppo damage- these are wrong after revert to QC version
 * Reduce delta to 10mV for correct detection when headphone is active

Change-Id: I6611ebeb09f60fb4cda48ba042bc1623544d688f