Update git submodules

* Update docs/submodules/policy/parent.git from branch 'master'
  to f20c2fc1dbcaa140500fcdca486689e6318939b7
  - Point to oparent 3.1.0 SNAPSHOT
    
    oparent has the latest dependencies upgraded.
    
    Issue-ID: POLICY-2391
    Change-Id: Iaa8b8faf8ffe143c0180d69f2854605b1247e355
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
    
1 file changed