Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Take the new Abot charm branch into account

    Change-Id: I0cc1ea6b9bed335b4f0cc740f37fe399dc89146b
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 18b3dbc..9f00eed 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 18b3dbc1c3e9bc744507248b1f0a28f35652fc35
+Subproject commit 9f00eed3e6da26482e4f2d687a10bb631201a7ca