Update git submodules

* Update docs/submodules/sdc/sdc-workflow-designer.git from branch 'elalto'
  to ef6d145a0c2e1ea8d519e81e364facecd6194c1a
  - Update pom version
    
    Update pom version to 1.5.3 so that we can release a new Elalto
    
    Issue-ID: SDC-3162
    Signed-off-by: sebdet <sebastien.determe@intl.att.com>
    Change-Id: I91dccb9d0b156e41b93687b0e9351988b1f489a8
    
1 file changed