Update notes for submitted changes

* ASoC: msm: Rampup volume on each start
Update notes for submitted changes

* mfd: wcd9xxx: Add support for REPEAT_CHANGE_VALUE
Update notes for submitted changes

* ASoC: wcd9320: Update condition to disable HPH PA after impedance detection
Update notes for submitted changes

* ASoC: wcd9320: Check denominator for zero before division
Update notes for submitted changes

* ASoC: wcd9xxx-mbhc: Disable micbias for impedance detection