Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Use only one image in heat_ims

    It calls VmReady2.run instead of publishing alt image.

    Change-Id: If24741fbc5bf7fa3f61ef39a054b148ce53fc4fc
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
  - Avoid duplicating jjb names

    It allows loading functest and functest-kubernetes jjbs in one
    Jenkins.

    Change-Id: Ia52e84583bc25aad0d1508096b536cbd5585d261
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 381a70d..7fe8606 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 381a70d86ce49bd55b298042dc11cb16f9710d82
+Subproject commit 7fe8606eff8e44f5dbfd4ef4d6961f55fe6c7d8f