Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 4a0405ef5dddb9035abf5323faeaf91c71b7ee97
  - Merge "Sonar Issue Fix - PORTAL-487"
  - Sonar Issue Fix - PORTAL-487

    Remove this unused import 'org.springframework.beans.BeansException'.(NotificationCleanupConfig.java)

    Issue-ID: PORTAL-487
    Change-Id: If0b80b12e874fba887836f408d3eb8cad0f5b6a7
    Signed-off-by: Driptaroop Das <driptaroop.das@in.ibm.com>

diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index de77fba..4a0405e 160000 (submodule)
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit de77fbaabe6b8280a491483d783b0ca0590e9a7e
+Subproject commit 4a0405ef5dddb9035abf5323faeaf91c71b7ee97