mild tweaks to build_stages.py to run on my desktop

Change-Id: Ie193e5bf576b8d3ddbd4c99d3707e3211557cc01
Reviewed-on: https://skia-review.googlesource.com/7368
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
1 file changed