audio: get_buffer_size and get_latency Interface optimization [2/2]

PD#TV-110799

Problem:
The interface output does not meet expectations

Solution:
1.Modify and optimize the interface
2.test cmd: halplay -f 1 -c 2 -r 48000 -d 1 xxx.wav

Verify:
t5w-at301

Change-Id: I1d7d0c67c85859d4c5d5de5303b1b797c4962609
Signed-off-by: haiyang.ren <haiyang.ren@amlogic.com>
1 file changed
tree: 761f68136068095d47409285579f334f9d84a4ce
  1. include/
  2. src/
  3. Makefile