Update git submodules

Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to 1e61676b77dd09659027b8984f050df7e8538526
  - Consolidate PolicyRestAdapter setup

    Put common code into PolicyEngineUtils that the controllers use to
    populate the PolicyRestController.

    Also some more sonar cleanup and formatting of XML files.

    Shortened 120 line characters. Removed some trailing spaces
    from comments.

    Fixed up one JUnit.

    Licenses.

    Issue-ID: POLICY-2133
    Change-Id: Id7d8ac3ab60331535f048ec0f26aeb17a099414e
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>