Update git submodules

* Update docs/submodules/portal.git from branch 'master'
  to 5312423cbaf998b8f104495833b3f019bffac204
  - Merge "Sonar critical fixes in EPAppCommonServiceImpl"
  - Sonar critical fixes in EPAppCommonServiceImpl

    Fixed issues according to the Sonar analysis:
    -Fixed imports.
    -Fixed logical comparisons.
    -Fixed comparisons between unrelated types.

    Issue-ID: PORTAL-588
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>
    Change-Id: Ibc204e0218788bb82f947c668d68fb6e88db7043

diff --git a/docs/submodules/portal.git b/docs/submodules/portal.git
index 7d95456..5312423 160000 (submodule)
--- a/docs/submodules/portal.git
+++ b/docs/submodules/portal.git
@@ -1 +1 @@
-Subproject commit 7d9545688ca7fb73dc668320cdcbab8584b31e15
+Subproject commit 5312423cbaf998b8f104495833b3f019bffac204