Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to 0a1f5990518d81c2736a899f5743ceab484cc537
  - Point to docker 2.0.1
    
    docker is released
    
    Issue-ID: POLICY-2378
    Change-Id: Ide4c8898c21a4ddb7b845f15f66b7ff2b9ac3fb7
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
    
1 file changed