Update git submodules

* Update docs/submodules/auto from branch 'stable/fraser'
  - gitignore: Ignore docs generation dirs

    Update .gitignore file to ignore OPNFVDOCS scripts and directories
    used for docs generation.

    Change-Id: I8a8476677b4f3d488d8b09b4eb17d98cad8e77bd
    Signed-off-by: Martin Klozik <martin.klozik@tieto.com>
    (cherry picked from commit cc722289a74012c2f76a683f7fb6ca1904c85e93)

diff --git a/docs/submodules/auto b/docs/submodules/auto
index 0f43563..e0a7c7e 160000 (submodule)
--- a/docs/submodules/auto
+++ b/docs/submodules/auto
@@ -1 +1 @@
-Subproject commit 0f43563624832c5908e6fc00eb0a4bbc6cc82c33
+Subproject commit e0a7c7e2efae6206927f203c6a78ba843a5ba93f