avsync-lib: support extra delay on video path [1/4]

PD#SWPL-70279

Problem:
New feature requirment

Solution:
Add extra video config field to control the video delay

Verify:
T5D + Roxton

Change-Id: I8d1735d8a596c0c65b3e5f0326ad38156f88253c
4 files changed
tree: b4a12537fa2948a3dc24f3e3956bf6e055b2a677
  1. src/
  2. avsync-lib.mk
  3. Config.in
  4. Makefile