Bug 863196 - Workaround on FTU and active audio channel to avoid the
power-on clip is too short.
Merge pull request #9510 from alivedise/bugzilla/863196_v1.0.1

Bug 863196 - Workaround on FTU and active audio channel to avoid the power-on clip is too short. r=yurenju, a=blocking-b2g:tef+