fromupstream: support Cq-Depend from command line

BUG=none
TEST=1. fromupstream.py -b none -t none --cqdepend "chromium:12345" \
     linux://238c30468f46b
     2. git show -s
     3. git rebase --onto HEAD~1 HEAD

Change-Id: Ie76eb660d8264c4793a207908e73f4a16398ff22
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2352311
Tested-by: Tzung-Bi Shih <tzungbi@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Commit-Queue: Tzung-Bi Shih <tzungbi@chromium.org>
1 file changed