CHERRY-PICK: AudioJack test check RMS value

RMS threshold is 0.08.

BUG=chrome-os-partner:26093
TEST=manually test and see the log will check RMS value

Change-Id: I2c504033616c5e36dfaf771c0d278f0f8998dd7c
Reviewed-on: https://chromium-review.googlesource.com/190839
Reviewed-by: Justin Chuang <jchuang@chromium.org>
Tested-by: Heng-ruey Hsu <henryhsu@chromium.org>
Commit-Queue: Heng-ruey Hsu <henryhsu@chromium.org>
1 file changed