Copy in new common.mk

BUG=chromium:304400
TEST=cros_run_unit_tests for daisy-drm, lumpy & amd64-corei7

Change-Id: I0d5fccfe14b0da5a5627ba83ada88ad1734def35
Reviewed-on: https://chromium-review.googlesource.com/174066
Tested-by: Albert Chaulk <achaulk@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Albert Chaulk <achaulk@chromium.org>
2 files changed