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
    
1 file changed