Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Fix floating ips issue in openstack_clean

    floatingips is a list of dictionaries where the attributes
    are a bit different than in the previous implementation.

    Change-Id: I8e8429b1819bba35a4a829f274c60b77ab2eea7e
    Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 6efef34..d7fc6fb 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 6efef3438c236ed0e522809c0c9acce5f0c81374
+Subproject commit d7fc6fb2603beb6fc4e8be498763459a33900e26