Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - [XCI] Fix ansible synchronize module parameter

    synchronize module unsupported parameter "recurse",
    it would be failed, when trying to synchronize the directory.
    we need change it to "recursive", more information please refer to
    http://docs.ansible.com/ansible/devel/modules/synchronize_module.html

    Change-Id: If18ce8a3411ba9425dd573f090c5f4e0c41858e0
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index a2cf6b4..cc4de35 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit a2cf6b44936886ff3cc142907552b016e8f5d42e
+Subproject commit cc4de358837ed6a853b1dbe4158366741d0318fd