Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to a2c93d258e4c564880601470434a7c0e168785c8
  - Merge "SharedContext class DB constraints"
  - SharedContext class DB constraints
    
    Java Bean Validation SR 380 annotations added to classes
    Getter, Setter changed to lombok annotation
    
    Issue-ID: PORTAL-643
    Change-Id: I690665b97e431de50750d5a497afcf0cc2efa065
    Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>
    
1 file changed