[moblab] Add -v param to the readlink for debugging.

readlink seems to fail every 10-15 bootups on the vm.  Add the
-v param to see if we can determine the root cause of why it is
failing.

BUG=chromium:929438
TEST=inspection

Change-Id: I0e2ef4211d9dc77f71c89c0a83c0cee32fcbcc3a
Reviewed-on: https://chromium-review.googlesource.com/1482070
Commit-Ready: Keith Haddow <haddowk@chromium.org>
Tested-by: Keith Haddow <haddowk@chromium.org>
Reviewed-by: Matt Mallett <mattmallett@chromium.org>
1 file changed