Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to 9039e5dacc397fdf94aa19cac1f5531d7661cb03
  - Merge "Documentation: Legacy APIs"
  - Documentation: Legacy APIs
    
    Identified the offered apis under platform as legacy
    
    Issue-ID: POLICY-1984
    
    Change-Id: Iee46ded3e506a91181b1c18e1618d4509b8f8f90
    Signed-off-by: Saryu Shah <ss3917@att.com>
    
1 file changed