Update git submodules

Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Conform ODL with last framework updates"
  - Conform ODL with last framework updates

    Now ODL TestCase calculates the ratio between critical tests passed
    and failed and saves it in result. Non-critical test cases can fail as
    result doesn't take them into account [1].

    It also updates default attribute values in TestCase and allows result
    to be float.

    [1] http://robotframework.org/robotframework/latest/RobotFrameworkUserGuide.html#setting-criticality

    Change-Id: Id4a89271b5b1a90cd3c1e2b08591ff26ffaffee0
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>