Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Generate API doc rst files

    It also fixes few docstrings

    Change-Id: I09b3456e82953f64ec49628e2979115cc7bbec55
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
  - Publish Functest doc online

    It reverts Sphinx theme to the default one as it's hugely better for
    API docs.

    Change-Id: Ic489e9b65d67d71fadb8ef78176a04cc382a3f5d
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 20ee61db8d38bf12127afd12e34ac601d36b3ff5)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 5a7ebae..c49405c 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 5a7ebaefd7e9d0caadf7e62d08041f8851a66a75
+Subproject commit c49405cb9e3d36044601ac3374e75173b2a8b6b7