Update git submodules

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>