Update git submodules

Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Partially rewrite test_run_tests.py

    It mainly fixes pylint issues and leverages on decorators.
    It should be noted that run_tests.py is not fully covered (see
    xtesting requirements).

    Change-Id: I114b67c3c5bfe61d72d004829af513e2014ad8b8
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
  - Fully test and cover functest/ci/tier_*

    It also fixes check_deployment.py and ci unit tests which were wrong
    when testing exceptions.

    Now ci modules are rated 10/10 and fully covered.

    Change-Id: I30dca491b44cc54aa1abc0d0433c00b4dcabfdc4
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>