Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 3d3218395011a8a7b1b1eea691362c1ee64c6d71
  - Merge "Updated Casablanca Maintenance Rel Notes"
  - Updated Casablanca Maintenance Rel Notes
    
    Issue-ID: PORTAL-399
    
    Change-Id: I3410fb228493115a6040c829eadcb3935dccaf20
    Signed-off-by: Welch, Lorraine (lb2391) <lb2391@att.com>
    
1 file changed