Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to a574019bcd6fd925f1fb2b1faa4c63b7c7e86958
  - Merge "Bug fixed related to service-instance metadat"
  - Bug fixed related to service-instance metadat
    
    Issue-ID: SDNC-1021
    Signed-off-by: Rahul_cool <rahul.tamrkar@huawei.com>
    Change-Id: I5a48fd7e119ba4a4c32daa33785e637521315838
    
1 file changed