Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Set timeout for create, attach and detach volume

    Without timeout for volume opperations the testcase
    will fail only after functest timeout

    Change-Id: I669c7933846574c09fc7db06a2a2ce7d101a44f5
    Signed-off-by: Delia Popescu <delia.popescu@enea.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 0bed33a..78ca3a8 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 0bed33a29da92685dc208b5929de6aefe0c5e5e9
+Subproject commit 78ca3a8df217cd4a09ad7061496c1028c95576df