Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Remove deprecated monkey patches"
  - Remove deprecated monkey patches

    OpenStack utils are being removed.

    Change-Id: I2a41297034654f678afa5a7a818961a4cd0cee73
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 1a04979..78a2110 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 1a04979f3fff45117754653e20758d2ac6a02615
+Subproject commit 78a21107e377f4f4722fd8d570dc0394f6ae5692