FACTORY: Allow SD/USB tests to run if test-media is already inserted.

This change allows the test to run if the media is ejected and then
re-inserted. Previously the test would be stuck always looking for
the insertion of a storage device that was already present.

TEST=Run test with media inserted, eject and reinsert. Observe test run.
Run test with media not inserted. Insert media and observe test run.

Change-Id: I1f727cb3398be916947c86a0e81c56e7caa5f68c
Original-Change-Id: If03fe5488cc781e91c8051c6091e6eccf06d7179
Reviewed-by: Nick Sanders <nsanders@chromium.org>
Reviewed-on: http://gerrit.chromium.org/gerrit/8099
Reviewed-by: Jay Kim <yongjaek@chromium.org>
Commit-Ready: Dave Parker <dparker@chromium.org>
Tested-by: Dave Parker <dparker@chromium.org>
1 file changed