audiovido_CRASFormatConversion - Logs command return code even when test failed.

This information is lost when the test is failed due to something else.
Modified the code to log the return code (at least). It could be useful at debugging.

TEST=Run the test on link
BUG=None

Change-Id: I6d8f25c90833f117dc17ba726b67f3043f5d3b4d
Reviewed-on: https://chromium-review.googlesource.com/179760
Reviewed-by: Hsinyu Chao <hychao@chromium.org>
Tested-by: Owen Lin <owenlin@chromium.org>
Commit-Queue: Owen Lin <owenlin@chromium.org>
2 files changed