Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Merge "Update configguide" into stable/fraser
  - Update configguide

    JIRA: FUNCTEST-959

    Change-Id: Id75689154a63b7258d753f26bb5ff01c0b06012e
    Signed-off-by: Linda Wang <wangwulin@huawei.com>
    (cherry picked from commit e37cf21781d60f498e08683df4ca7b1993c52052)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index d7754f0..7ba6ff1 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit d7754f0c27b0cd0f8965c1b52992b3a6d0f6f8a2
+Subproject commit 7ba6ff1dfd4f5efb5c26a2606d53d625f3cae846