Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Add minimal docstings in clearwater_ims_base.py

    It will allow forcing 10/10 in any new patchset.

    Change-Id: I4cc52a9fb66fdd2c0dcbf9915be262acedac8672
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit f1353fff60344b01c588d9724b3b1de819cbe661)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 594a3f3..a9cd113 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 594a3f389add82469ef66462cdbd30347945f6ee
+Subproject commit a9cd11304620c3810fb7849f5a606488e2479a12