Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to ea9fdaac3e3dcc5dadceb72d4f470b07cd3a1f72
  - fix the DG writing log bug
    
    Issue-ID: SDNC-784
    
    Signed-off-by: Victor Gao <victor.gao@huawei.com>
    Change-Id: I80296f2f9149a32f581a14a9eb091c5cdc6a68fb
    
1 file changed