audio: clean up the build warning issue. [2/2]

PD#SWPL-161468

Problem:
clean up build warning issue

Solution:
clean up build warning issue

Verify:
./run.do_compile

Change-Id: Iba011254b9030ea641fdedaf3a398a67307e1830
Signed-off-by: haiyang.ren <haiyang.ren@amlogic.com>
1 file changed
tree: ec45fcf52ee894bef2825abb06cfec77b59748c3
  1. include/
  2. src/
  3. Makefile