Update git submodules

* Update docs/submodules/sdc/sdc-workflow-designer.git from branch 'elalto'
  to 75d642902350562a790cf034ea92568ba5d52168
  - Changes for backend to support SSL
    
    Changes to support starting in https mode and changes to support making a secured call to the SDC backend
    (cherry picked from commit 820f4ec65a28ed822d4205b05ac6fbbd910a46cc)
    
    Issue-ID: SDC-2405
    
    Change-Id: I0588484fdcb0903934814906672f4fc9a76eca2c
    Signed-off-by: ilanap <ilanap@amdocs.com>
    
1 file changed