Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to 484d74555c481f055a7f33909071962cace85aa0
  - fixing security issues found in onap admportal
    
    changed exec command to spawn command to prevent arbitray code execution
    
    Issue-ID: SDNC-978
    Signed-off-by: Rotundo, Al (ar3165) <ar3165@att.com>
    Change-Id: I4487b5c7a14d7a7b1e4985b89e646cf6801845e0
    
1 file changed