Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Add shebang in snaps_suite_builder.py"
  - Add shebang in snaps_suite_builder.py

    Change-Id: I3392068b4a47d35bf0d91fe6d93f2de268f198bf
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 61083f9..10ff40b 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 61083f97ca4552ffa4fa83b20d30f4a914e24eee
+Subproject commit 10ff40bdfe462d4c6e77f48683d10b4f52b152e0