Update git submodules

Update git submodules

* Update docs/submodules/functest from branch 'master'
  - All patching config files in memory

    It adds the yaml content as Config attribute and allow patching it
    without modifying the file (and reimport constants or config).

    It also removes obsolete data in config_patch.yaml and moves several
    functions in the right modules (Config)

    JIRA: ARMBAND-334

    Co-Authored-By: Cédric Ollivier <cedric.ollivier@orange.com>
    Change-Id: I5c9a574d3283828063154c977cdfbc2abfdc6777
    Signed-off-by: Linda Wang <wangwulin@huawei.com>
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>