Copied common.py to rpm_control_system

BUG=None
TEST=None

Change-Id: I6d602e763d892db2039875142603b9fc2bd9df84
Reviewed-on: https://gerrit.chromium.org/gerrit/43064
Reviewed-by: Kris Rambish <krisr@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Deepak Gopal <deepakg@chromium.org>
Tested-by: Deepak Gopal <deepakg@chromium.org>
1 file changed