Update git submodules

* Update docs/submodules/externalapi/nbi.git from branch 'master'
  to 672a4638243434ac22408a7d352cf6ef3758879e
  - Merge "updated Dockerfile"
  - updated Dockerfile
    
    Issue-ID: EXTAPI-384
    Signed-off-by: gautamk189 <gautamkr@hcl.com>
    Change-Id: I4c5fa247d1e84e3991ab5e3a41fc60ff21dceb8d
    
1 file changed