Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Update Docker slicing presentation

    It conforms with Euphrates.

    Change-Id: I44b65ce75147381c7d437881c6c8da9cfe3aab21
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit baf0e5f6d19205a122b69879e2bbf258393ebf86)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 732d5c7..07d3e55 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 732d5c708aade658ccb77a046ce899c0ffb5a5db
+Subproject commit 07d3e55554b208a4d1626329ad5e1664c97f173c