audiohal: Add AV progression logs for ALSA output. [1/1]

PD#TV-32086

Problem:
The requirement from customer is to add a APTS logging
for ALSA output with a specified format. The log file
is specified through an environmental variable.
This log will help for tracing instrumentation.

Solution:
Implement the required logging.

Verify:
Verified with DIAG_LOG option enabled and use
hal_param set "AV_PROGRESSION,<log_path>" to
write log to specified location.

Change-Id: I9794136a0da2a2271a58433d345aa804b44eccbc
Signed-off-by: Tim Yao <tim.yao@amlogic.com>
4 files changed