Update git submodules

* Update docs/submodules/externalapi/nbi.git from branch 'master'
  to b956f64aa4b3abd2871bab14d4cbbe6bfdcaadcc
  - Automation adds index.rst
    
    Issue-ID: CIMAN-376
    
    Change-Id: I7f2430dc57d49689af3c509f231d20cdf754078a
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
    
1 file changed