Update git submodules

Update git submodules

* Update docs/submodules/portal.git from branch 'dublin'
  to f52989b500032f89f3e2c8cdaa6262239c65c255
  - Updated Dubline Release Notes

    Issue-ID: PORTAL-592

    Signed-off-by: Welch, Lorraine (lb2391) <lb2391@att.com>
    Change-Id: Ied0c6b28e10630d6917b174b65a72448e01c63e4
    (cherry picked from commit 07bcd63c060fe4544c1cf4f40d8fcdc307408ca8)

  - Updated Dublin Release Notes

    Issue-ID: PORTAL-592

    Signed-off-by: Welch, Lorraine (lb2391) <lb2391@att.com>
    Change-Id: I4d1e7e8bd83ed2adb7df25ccf4c694b1c81ef879
    (cherry picked from commit e98d94edaa2276b33959f5ef6d45f3fdeeab37ee)

  - Document OJSI-190 vulnerability

    Issue-ID: OJSI-190
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I1c586793b744a5807e7b1a7a1d416dfd43409ab0

  - Document OJSI-174 (CVE-2019-12318) vulnerability

    Issue-ID: OJSI-174
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I47249407ccb62ca7ffd1d8edc9ada8793f4c53c9

  - Document OJSI-92 (CVE-2019-12121) vulnerability

    Issue-ID: OJSI-92
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: Idad22deafb262da539c52fa8733e7ea098fd1361

  - Document OJSI-65 (CVE-2019-1212) vulnerability

    Issue-ID: OJSI-65
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I5c3bee06c2b1da3eca2bb583c57decb35b0f32c0

  - Document OJSI-15 (CVE-2019-12317) vulnerability

    Issue-ID: OJSI-15
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I5cb96956f25e09a390ef24a52f6222c0cc7b9e94

  - Document OJSI-106 vulnerability

    Issue-ID: OJSI-106
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I549009cf3c313b0f5307b99ce22b56243e933f8f

  - Document OJSI-105 vulnerability

    Issue-ID: OJSI-105
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I8c3a00ce98886f7175e5cf85f09309bd50ef702c

  - Document OJSI-97 vulnerability

    Issue-ID: OJSI-97
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I56d194918b91580d5d9f6b25e564923fe29c51f3

  - Improve security release notes

    In order to provide users with more details of project's state in
    terms of security let's divide the security release notes into three
    sections:

    - Fixed Security Issues
      Contains a list of security fixes merged during this
      release (especially those reported via OJSI tickets).

    - Known Security Issues
      Contains a list of vulnerabilities detected in project during
      release which have not been fixed yet and thus should be mitigated
      by the user.

    - Known Vulnerabilities in Used Modules
      Contains information about NexusIQ scan results

    Issue-ID: SECCOM-238
    Change-Id: Ief8825c38c7723c26e8c7e10a6a13f4b8f9c169d
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
  - Dublin Release Notes for Portal

    Issue-ID: PORTAL-592

    Signed-off-by: Welch, Lorraine (lb2391) <lb2391@att.com>
    Change-Id: I93a2ff82f52f709d12bfa92c0d14859d2298b6a1
    (cherry picked from commit 5260297bb0fdd7ca1640b45a4c9b96b7fd158a1e)