Update git submodules

* Update docs/submodules/dcaegen2.git from branch 'master'
  to 18ff977f7bd4407bf1d7bee02293d3de8c70a83f
  - Fix committer ID
    
    Issue-ID: DCAEGEN2-2012
    Signed-off-by: Jack Lucas <jflucas@research.att.com>
    Change-Id: Iccd81001d000220d88ca02e0d6caa9dcad5a013c
    
1 file changed