Update git submodules

* Update docs/submodules/ccsdk/features.git from branch 'master'
  to 752248349615d55473dcfdd9f4b141e8706716fa
  - Remove A1 adaptor from sdnr-northbound-all aggregator
    
    Remove A1 adaptor from sdnr-northbound-all feature aggregator so
    that it can be optionally installed separately.
    
    Issue-ID: CCSDK-2371
    Signed-off-by: Dan Timoney <dtimoney@att.com>
    Change-Id: Ie06aa1652b3b498a6b2c60896e102e55fb98d560
    
1 file changed