Update git submodules

* Update docs/submodules/vnfrqts/usecases.git from branch 'master'
  to af8806162a4bf77f92c90e71fa39dee724ab3a65
  - VNFRQTS - Use case links fix
    
    Issue-ID: VNFRQTS-552
    
    Change-Id: Ibaf903eaf8ba520749f39dd21c7a97215fcfce23
    Signed-off-by: Hagop Bozawglanian <hagop.bozawglanian@att.com>
    
1 file changed