Mark buildbot_test_toolchains.py, test_toolchains.py, and weekly_report.py executable.

BUG=None
TEST=None

Change-Id: Ia49aef079414d7072a57dc14d9b0d99fa3a75d40
Reviewed-on: https://chrome-internal-review.googlesource.com/198670
Reviewed-by: Caroline Tice <cmtice@google.com>
Commit-Queue: Rahul Chaudhry <rahulchaudhry@google.com>
Tested-by: Rahul Chaudhry <rahulchaudhry@google.com>
3 files changed