Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Merge "Complete framework documentation part for VNF" into stable/euphrates
  - Complete framework documentation part for VNF

    Change-Id: I4c59adfe1cfec278e0b267cc7a05e8addd45d034
    Signed-off-by: Morgan Richomme <morgan.richomme@orange.com>
    (cherry picked from commit ee2eb17dbe52418f6bdc6201f78b9f1e8858fdcc)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index a7d30b3..b45746e 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit a7d30b3ee2cb66b56b169e231a550351d33353fe
+Subproject commit b45746ee8dcf62cf11b860e4c4b797779a08abc7