Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Delete line breaks before binary operator"
  - Delete line breaks before binary operator

    They are considered as warnings by flake8.

    Change-Id: I84ffedc41c24133aa0d45e312bb095526aa1095b
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index d71eadb..c1a6979 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit d71eadbd067f590ab0f456dfcd603ce183b3779c
+Subproject commit c1a6979eb1c51083d357afa5caee12539f94b777