Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to a57df931e3d7fda65f78ad503614eabd8a51c691
  - SDNC-555: Install ODL features for NETCONF
    
    Bug Fix:
    SDNC install script should enable all ODL
    features required for NETCONF support.
    Features:
    odl-netconf-clustered-topology
    
    Issue-ID: SDNC-555
    Change-Id: I41db875e769523ad578da3bd92800fe18460b93d
    Signed-off-by: DarraghEgan <darragh.egan@est.tech>
    
1 file changed