distributed-provisioning.md: report with test setup and results
distributed-provisioning.md: report with test setup and results

This was the first usage of the new ad-hoc testing facility. It's
worthwhile to capture the results here because it includes also some
lessons learned about the setup.

kubernetes/perf-tests,shyamjvs/perf-tests,shyamjvs/perf-tests,kubernetes/perf-tests,kubernetes/perf-tests,kubernetes/perf-tests,kubernetes/perf-tests,shyamjvs/perf-tests,shyamjvs/perf-tests,shyamjvs/perf-tests