Update git submodules

* Update docs/submodules/ccsdk/features.git from branch 'master'
  to 9751ab7122a05e9ca10dde1348869f06899fa0cc
  - SDN-R code coverage
    
    add unit test to devicemanager
    
    Issue-ID: SDNC-1071
    Signed-off-by: herbert <herbert.eiselt@highstreet-technologies.com>
    Change-Id: I794a86defde37e62f555c4e34acaa499c21788ca
    
1 file changed