Update git submodules

* Update docs/submodules/vnfsdk/model.git from branch 'master'
  to 8ce5dc08d9e9c1c6719ce87138fa3a9d63a0f3d1
  - Automation adds index.rst
    
    Issue-ID: CIMAN-376
    
    Change-Id: I1fb4cba036d62c75ba00541a266f0f6dc44d01fa
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
    
1 file changed