Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'dublin'
  to 76d8898d21680b986e409f0618fc7bd1896bca20
  - Merge "Remove oof_directives from user_directives" into dublin
  - Remove oof_directives from user_directives

    Oof_directives - when populated with a json
    string, breaks the parsing of the user_directives.
    Since it is not needed in the user_directives,
    remove it.

    Change-Id: I0e2c3deef8266df52ac73b95209843ac31f986ef
    Issue-ID: SO-1939
    Signed-off-by: Eric Multanen <eric.w.multanen@intel.com>