alsa_api_test: Extends playback period after move

We should play for a longer time so estimated sampling rate can be more
accurate.

BUG=chromium:617516
TEST=run alsa_api_test --move on veyron_minnie

Change-Id: Icc8e1af9951903ed8d1f93feb8af7966ac8b5d83
Reviewed-on: https://chromium-review.googlesource.com/360054
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>
1 file changed