audio: modify get main underrun API [1/1]

PD#SWPL-195983

Problem:
modify get main underrun API.

Solution:
modify get main underrun API.

Verify:
yocto-ap222

Change-Id: I30920010773b1776a6512839cee7edbf2a5b48bc
Signed-off-by: yayun.shi <yayun.shi@amlogic.com>
1 file changed