Update git submodules

Update git submodules

* Update docs/submodules/portal.git from branch 'elalto'
  to 7995eca6ba48a3129fd0c6f1b20b925e0b306999
  - Adjust security release notes according to the template

    Issue-ID: SECCOM-238
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: Id95d33400e1ef88ec051e280e7c850c9ec5e05ea

  - Merge "Portal El-Alto Release Note"
  - HealthCheck & Namespace Check

    Issue-ID: PORTAL-723
    Change-Id: I97ac3c592ae1f7a6142384d70ac6038ccee1d8fb
    Signed-off-by: statta <statta@research.att.com>
  - Portal El-Alto Release Note

    Issue-ID: PORTAL-738

    Signed-off-by: Welch, Lorraine (lb2391) <lb2391@att.com>
    Change-Id: I3f4c3fea27d3870412887679023c7de02082505c
    Signed-off-by: Welch, Lorraine (lb2391) <lb2391@att.com>