snd_soc_msm: Increase microphone volume for camcorder

* Camcorder records in such a way that we can actually hear it now
* Don't use MICBIAS1 - it causes some nasty feedback and popping

Change-Id: I08e3923322870cddbe54e8688b042f8f52eb875d
Merge branch 'CyanogenMod/cm-10.2'