Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Disable all missing-docstring warnings in unit tests

    Change-Id: I22b7bbdab5f000b4ade6c2ba3a4029c146887cbd
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index a01ff48..f45b641 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit a01ff48e8c5c64cd179c3f407bf6d4363a8f1557
+Subproject commit f45b6411560bdc21b78346889a0e051cac48efb5