aml_audio_hal: Improve hal_param to support get command [1/1]

PD#SWPL-13795

Problem:
hal_param need support get function.

Solution:
Add get param settings.
Usage:
hal_param get <key>
hal_param set <kvpairs>
When there are only two parameters, it will be a set command
to make it compatible with old usage.

Verify:
Tested on U212 build

Change-Id: I17319a37b41c4c5d95c70436db61b8fd05f52218
1 file changed
tree: c8260987a487680162173e5d5e0da014adcdaeb8
  1. include/
  2. src/
  3. Makefile