Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to c0358db3ac257a91364691654fe82f1b1a4f8bab
  - Upgrade tomcat to 9.0.16
    
    Removes security vulnerability.
    
    Issue-ID: POLICY-1662
    Change-Id: I6a90716af561d227265a83c820b1668a99ab1a30
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
    
1 file changed