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)

diff --git a/docs/submodules/auto b/docs/submodules/auto
index 686e7c7..a81b194 160000 (submodule)
--- a/docs/submodules/auto
+++ b/docs/submodules/auto
@@ -1 +1 @@
-Subproject commit 686e7c75129c7cedeae588de3d3f3754065c621c
+Subproject commit a81b1941d2318835f7fe5f672b2096f257fd4611