[MotionMark] Apply r277406 to Websites/browserbench.org/MotionMark1.2
https://bugs.webkit.org/show_bug.cgi?id=225722

Rubber-stamped by Geoffrey Garen.

Just copy over the change, so the website gets updated.

This doesn't bump the version number, which is okay, because we never actually
"released" version 1.2; we just made a folder on a website, and didn't update any
links to point to it.

* MotionMark1.2/resources/runner/tests.js:

Canonical link: https://commits.webkit.org/237659@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@277409 268f45cc-cd09-0410-ab3c-d52691b4dbfc