Update git submodules

* Update docs/submodules/auto from branch 'master'
  - Test case for resiliency improvements [WIP]

    JIRA: AUTO-13

    On behalf of Gerard Damm to commit his codes.
    Temporarily keep resiliency test case under
    auto/testcase/resiliency.

    Change-Id: Idb9217e5d18113f9da69df8cce5096567655dd66
    Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

diff --git a/docs/submodules/auto b/docs/submodules/auto
index 7375248..8a4a37f 160000 (submodule)
--- a/docs/submodules/auto
+++ b/docs/submodules/auto
@@ -1 +1 @@
-Subproject commit 73752489bd36221f187542c6bab20d601b006e6d
+Subproject commit 8a4a37faa382003d25a71ea5b6d6dc7f1c63a434