Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Update Config Guide

    Change-Id: If7295f553f203171f5a6efebc8d553d5dca8433a
    Signed-off-by: Jose Lausuch <jalausuch@suse.com>
    (cherry picked from commit b2735c0a1eb76a184b2ba133045041d92f32abed)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 21d8ff3..d2c3545 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 21d8ff3fb13dac52cb3e906e968ee69104012082
+Subproject commit d2c354571a41c48a6fcb5cc785be6c3813609ad2