[autotest] audio_Aplay: use default playback device
We should not use aplay -D hw because it actually uses hw:0,0.
We should use card as provided by alsa_utils.get_sysdefault_playback_device.
BUG=chrome-os-partner:43744
TEST=run audio_Aplay test on swanky.
Change-Id: Id8ac8674a7a18604915b540e68e961c6a49044e7
Reviewed-on: https://chromium-review.googlesource.com/298991
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Rohit Makasana <rohitbm@chromium.org>
Reviewed-by: Chinyue Chen <chinyue@chromium.org>
1 file changed
