Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Support VIO (VMware in OpenStack)

    It allows converting all images to vmdk and then patching all
    testcases. DEPLOY_SCENARIO should match vio to do so.

    convert_images.sh has to be called as prerequisite.

    JIRA: FUNCTEST-992
    JIRA: FUNCTEST-993

    Change-Id: Ie35bf80af1cd9610a8c416ec01b81b61c6148cfe
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 7fe8606..d176e20 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 7fe8606eff8e44f5dbfd4ef4d6961f55fe6c7d8f
+Subproject commit d176e20067368d834e8b77d4f685f48cb54d03f5