veyron/*/main.go:  update go:generate to use tool

Use the veyron doc.go generator program to generate doc.go files for
commands so that go:generate operates correctly when there are unit
test source files in the same directory per:
https://github.com/veyron/release-issues/issues/389

Change-Id: I84b0a07a59b591b87717276a8528224c88d6021f
9 files changed
tree: 15208f2522c8ae38a408499938d37e870e8076cd
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/