Revert "find5: audio: Use CAF compressed audio"

This reverts commit 066ea081c30ab4c609097d9e3029998330e3cc76.
Merge branch 'jb-mr1' of https://github.com/maxwen/android_device_oppo_find5 into jb-mr1
media_profiles: change aac to 128kb/s
audio_policy: add AUDIO_DEVICE_IN_BACK_MIC