Update git submodules

Update git submodules

* Update docs/submodules/auto from branch 'stable/fraser'
  - Merge "first draft of Auto configuration guide; patched;" into stable/fraser
  - first draft of Auto configuration guide; patched;

    JIRA: AUTO-27

    First draft of Auto configuration guide, referencing long-term goals
    and current progress (from wiki page).
    Patch to fix typos and address comments.

    Change-Id: I9a15bbed9b71a7f351be274401c0ae033befb245
    Signed-off-by: Gerard Damm <gerard.damm@wipro.com>
    (cherry picked from commit ed52cec1928d0ff93538c9bb7a57f8c52e83b99e)