Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Remove one useless security group"
  - Remove one useless security group

    This rule breaks lookup when the user created is admin.

    Change-Id: I2fe3dba687bd5d151cd7e53217586a0bcb21815d
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 101000a..4c7a122 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 101000ae41d7391c4fa10f65835cffc72ad9f543
+Subproject commit 4c7a122a6ff45a319162d084e194a414f072576c