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>

diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index a8001bf..a2c93d2 160000 (submodule)
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit a8001bfd4a8a77fb402a5679ccb80dd14a3658c1
+Subproject commit a2c93d258e4c564880601470434a7c0e168785c8