Update git submodules

* Update docs/submodules/ccsdk/features.git from branch 'master'
  to a88eb4a899fee09bc3c067a2764bb182d485d119
  - Include CMNotify feature in SDNR
    
    Integration of CMNotify feature in ccsdk-features-
    sdnr-northbound-all meta feature
    
    Issue-ID: CCSDK-2148
    Signed-off-by: SandeepLinux <Sandeep.Shah@ibm.com>
    Change-Id: I52d4729e009e9f4abfed4514c5911c51c037f1c2
    
1 file changed