make python scripts executable

These are expected to be run directly, so mark both of them executable
so it's easier to run tests.

BUG=chromium:982465
TEST=running both directly works

Change-Id: Ib76c3d61a80c554ad03ed68065f9afa2c6ccb887
Reviewed-on: https://chromium-review.googlesource.com/1693881
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@google.com>
2 files changed