Audio: add mixer for mp3/aac main+ad [1/1]

PD#SWPL-188257

Problem:
in nonms12, add mixer for mp3/aac main+ad.

Solution:
in nonms12, add mixer for mp3/aac main+ad.

Verify:
yocto.

Change-Id: Idd6d3f6faec86aaa5ee932ca392dfaecf5af4089
Signed-off-by: wei.wang1 <wei.wang1@amlogic.com>
6 files changed