Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Fix creds used by vrouter"
  - Fix creds used by vrouter

    1. 'CloudifyVrouter' object has no attribute 'creds'
    2. snaps_cred was set in VnfOnBoarding.prepare()

    Change-Id: I7d7ba60627f82c6e40d2c6190b110d6029740eb2
    Signed-off-by: Alex Yang <yangyang1@zte.com.cn>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 4b8a9ec..5c95b49 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 4b8a9ec3bea182dc7d2c4e08dd38e7b509aeaad3
+Subproject commit 5c95b492ff11f9f5373a643ad05cc23f29036d0b