Update git submodules

* Update docs/submodules/vnfrqts/requirements.git from branch 'master'
  to ff16ad406e617a274a834c4b321e11f8731d8754
  - Correction of requirement R-89571
    
    Issue-ID: VNFRQTS-833
    
    Signed-off-by: JunfengWang <junfeng.a.wang@ericsson.com>
    Change-Id: I4adeb62dffa1847caedadb277dcc5feb939dbc15
    
1 file changed