Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 46f28897cbaadcfc54c759a2ca12dc4e318b79c4
  - Merge "EpRoleNotificationItem class DB constraints"
  - EpRoleNotificationItem class DB constraints

    Java Bean Validation SR 380 annotations added to classes

    Issue-ID: PORTAL-638
    Change-Id: I035ad9703f25cc87567700f66c3649ca53aee2df
    Signed-off-by: Dominik Mizyn <d.mizyn@samsung.com>

diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index b436ad7..46f2889 160000 (submodule)
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit b436ad77af84bab4af0dd93a0190b36065c9950f
+Subproject commit 46f28897cbaadcfc54c759a2ca12dc4e318b79c4