audio: force "MICBIAS" on for MIC

Microphone BIAS is needed to power the analog mic, which is controlled by MICBIAS
on the max98090 / max98091 codec.

snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
Merge branch 'master' of https://github.com/rkchrome/kernel
audio: speaker enable

Set L/R speaker mixer allow sound in extern speakers.