Revert "Don't cutoff meta-data being set!!!"

Not a problem since "Failed to mount /dev/block/.../system at
/system error is fixed.

This reverts commit 16b0147382d01af5b51102698f75769e77303d37.

Change-Id: Iddd60b82be80b6797d6e4160ae77595d8f514722
Setup sw/hw proxy for AEC and NS, to enable my audio_effects
changes to AEC pre_processing for voice_communication and NS
output_session_processing for mic effects.

Change-Id: I0898d3aab2177006cafe56615ecf7e07e99e9bba
Add ListenService to mediaserver

Change-Id: Ib7cb513901cdc093a4332356cd0e9681fbae10a7