avsync: allow audio to drop/insert to sync with video in audio change [1/1]

PD#SWPL-46415

Problem:
audio switching time could be optimiZed.

Solution:
Enable drop/insert choices since the function is verified working.
MS12 lib upated to MS12_v2.4-v20210526 or later.
Remove the previous workaround.

Verify:
AH212

Change-Id: I7bf006bcbfc7f81d8d9bd25467566430c972d0b2
Signed-off-by: yongchun.li <yongchun.li@amlogic.com>
1 file changed
tree: 9488e1782d4920d025f87fee606bf46c9270cbbc
  1. src/
  2. avsync-lib.mk
  3. Config.in
  4. Makefile