Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Remove NetVirt from installer dependencies

    Change-Id: Idb937b3ed4896208048b90b705dc3e6db6104b60
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index aca4e83..ef44d1c 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit aca4e83931aa48b633cbb399bd4e9f16d3acdb13
+Subproject commit ef44d1c12fcde4cb3cea4a23078e0a984f1a7336