Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Print stdout and stderr when calling commands over SSH"
  - Print stdout and stderr when calling commands over SSH

    It will help debugging possible issues vs APEX [1].

    [1] https://build.opnfv.org/ci/view/functest/job/functest-apex-baremetal-daily-master/792/console

    Change-Id: I610f5b0a7774440c51fa086fad4f61c9be0571dc
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 8ca868e..3becae2 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 8ca868e6a71520d151a405f01e4a5a77973b4956
+Subproject commit 3becae261a56ead94c400db618d801e4337ce4a8