Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Merge "Fix stable/euphrates .gitreview" into stable/euphrates
  - Fix stable/euphrates .gitreview

    It simply adds defaultbranch=stable/euphrates

    Change-Id: I06cbebc719f9188415d5de68a008d16f0b915dec
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 9106081..ea72dd2 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 9106081c77571ff1714bdeb2072aa2ddb29d364c
+Subproject commit ea72dd2576d564c1bec580beef16b5f88f1ba200