Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to a956a490499cf5c3f4ed2bff1921aec9a2b5a200
  - Only formatting changes for checkstyle fixes
    
    Change-Id: I276b0946c5b03e5369a3c70468672378825c0766
    Issue-ID: POLICY-1434
    Signed-off-by: pa834y <pa834y@att.com>
    
1 file changed