Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to f2ec458f12c470552462a75f26ef7e1704482a72
  - Update docker images in integration override
    
    Issue-ID: INT-1414
    Signed-off-by: Marco Platania <platania@research.att.com>
    Change-Id: Iabc25330dd803bedcaa8c321b5ff45619782884e
    
1 file changed