Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to 72d0ed54d160546f494781bca5aa0f574d84748d
  - Bug fixing in DGs related to network and links storing in AAI.
    Issue-ID: SDNC-899
    
    Signed-off-by: Hesam Rahimi <hesam.rahimi@huawei.com>
    Change-Id: I09df4dd299ebb02386312a58806404cc2ae27b8c
    
1 file changed