Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 4027435c28e1433df2476b83a6e77ba4d1d865bd
  - Merge "WidgetFileApp class DB constraints"
  - WidgetFileApp class DB constraints
    
    Java Bean Validation SR 380 annotations added to classes
    
    Issue-ID: PORTAL-633
    Change-Id: Id7b45dedafe2e5f9e799a93d219baef46c88d124
    Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>
    
diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index 9f45f60..4027435 160000
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit 9f45f60932b17364ade24f29c7831bd3ef757bc5
+Subproject commit 4027435c28e1433df2476b83a6e77ba4d1d865bd