Update git submodules

Update git submodules

* Update docs/submodules/cli.git from branch 'master'
  to 4a8c1b6d692207917ee61cd14eba3f9f522a9bd5
  - Merge changes I69af0d61,I67144105,I33439134

    * changes:
      Document OJSI-135 vulnerability
      Document OJSI-129 vulnerability
      Improve security release notes

  - Document OJSI-135 vulnerability

    Issue-ID: OJSI-135
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I69af0d6102d7aef55beadea5168cdfc83532fb24

  - Document OJSI-129 vulnerability

    Issue-ID: OJSI-129
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I67144105f78636104dc9862c2f2e0166bcb14fa8

  - 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
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I334391346a97a1fb29636151babba6c6c473ebd0