Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Stop reading NODE_NAME in tempest and refstack"
  - Stop reading NODE_NAME in tempest and refstack

    NODE_NAME should only be read by TestCase when publishing the results
    to the database. Other debug data are already printed by run_tests.

    INSTALLER_TYPE and DEPLOY_SCENARIO are also unused by refstack.

    Change-Id: Ib82d5c1512553beba2c56f4ec2860cb2593f801e
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index cf456f4..9476136 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit cf456f4397e0920da49289b3d90f0a9da62d025a
+Subproject commit 9476136e4f67cbb9853683c871bb699918a45ee6