Update git submodules

* Update docs/submodules/vnfrqts/testcases.git from branch 'master'
  to d63906f565efeed7b69df821ff544dd4da2a919d
  - VNFRQTS - Update version
    
    Issue-ID: VNFRQTS-653
    
    Signed-off-by: Hagop Bozawglanian <hagop.bozawglanian@att.com>
    Change-Id: I066a95d0885d3e24d59d7757ffe9929c750b2529
    
1 file changed