Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Remove the constraint of INSTALLER_TYPE

    Revert the patch: https://gerrit.opnfv.org/gerrit/#/c/45167
    When run on non-opnfv deployment, there is no such concept of INSTALLER_TYPE.

    Change-Id: I3d420334c9329f7565cf22a0c314a4ffdb410d36
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 0ccc314..4d95f15 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 0ccc31406d486d2eebe347f3292a38573d470eb1
+Subproject commit 4d95f152cda9c7a44df13025341d3d7d472d57c6