Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Precise vyos_vrouter logs

    Aborting was written even if it worked after rebooting the vm [1].

    [1] https://build.opnfv.org/ci/view/functest/job/functest-daisy-baremetal-daily-master/41/console

    Change-Id: Idb29624b8793df5d77d401b375aa3b3176778ddf
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 99b72c34e92c567a47ebc3b977c7aaa290fef6de)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index e4b7e2b..9cb5fc9 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit e4b7e2bf524ccc30479015711ec0beeb04c4135e
+Subproject commit 9cb5fc9e5c565fbf5c3c270f66cf81a0a51f5c7f