Update git submodules

* Update docs/submodules/modeling/etsicatalog.git from branch 'master'
  to 51ca1c07161b2e745502cc1e8d95b812c828b4f5
  - Merge "Automation adds index.rst"
  - Automation adds index.rst
    
    Issue-ID: CIMAN-376
    
    Change-Id: Ieeffca41d40f84cd439654e597fa3dd935377915
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
    
1 file changed