common.sh: backport loopback_partscan retry to 77

BUG=chromium:1009559
TEST=tryjob

Change-Id: Ia5ed20e823f769332a419eaddf8b5932d8c13d64
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/1833061
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Commit-Queue: George Engelbrecht <engeg@google.com>
Tested-by: George Engelbrecht <engeg@google.com>
(cherry picked from commit 1e4496ce2260800223949fc46413b00b0b242720)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/1834757
Auto-Submit: George Engelbrecht <engeg@google.com>
Commit-Queue: Daniel Gagnon <dgagnon@google.com>
Reviewed-by: Daniel Gagnon <dgagnon@google.com>
1 file changed