Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Change the name of flavor and disabled ssh-hostname verification."
  - Change the name of flavor and disabled ssh-hostname verification.

    Change-Id: Ia801e8a37288606a325b5dd010ab9f6acbfdadf4
    Signed-off-by: soumaya <soumaya.nayek@rebaca.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 3306da5..7d83431 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 3306da5522f2576f2cd8431aac7fd4f3f4b32ca3
+Subproject commit 7d834311d2828437bc5350efb0792062b59ace56