Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Update documentation for Danube"
  - Update documentation for Danube

    JIRA: FUNCTEST-559
    JIRA: FUNCTEST-560

    Change-Id: I2104a9b68bb3985c9f5900ebc30bab89b09b7835
    Signed-off-by: Morgan Richomme <morgan.richomme@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 18745da..dcf1e07 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 18745da8f335fe3049ffdd5acdafb5848981a1c9
+Subproject commit dcf1e078e3ffde4ed57c0cc6da05534ab419ca22