Update git submodules

* Update docs/submodules/vnfrqts/usecases.git from branch 'master'
  to 8a9a246a185ab7610229ccdd2cbbad28ecb64d63
  - VNFRQTS - Update local build process
    
    Issue-ID: VNFRQTS-542
    
    Change-Id: I647040bedea024e507f8e3c19dd9d08abeff3354
    Signed-off-by: Hagop Bozawglanian <hagop.bozawglanian@att.com>
    
1 file changed