Update git submodules

* Update docs/submodules/dmaap/datarouter.git from branch 'master'
  to 772c41696a481a12b7bf7cbab399094e72ce3fd5
  - Update Franfurt release notes
    
    Signed-off-by: efiacor <fiachra.corcoran@est.tech>
    Change-Id: I0769845324323774db442fa3ce3100fb6791ceab
    Issue-ID: DMAAP-1423
    
1 file changed