Update git submodules

Update git submodules

* Update docs/submodules/ccsdk/parent.git from branch 'master'
  to e3948b0308c817f0b43918731ee26dab6202c0c9
  - Change nexus-staging config

    nexus-staging-maven-plugin interferes with Jenkins staging job, but
    is needed for release-version and docker-version jobs.  Changed to
    install nexus-staging-maven-plugin in a separate build profile that
    is activated when altDeploymentRepository property is unset. This property
    is set by the staging Jenkins job only.

    Change-Id: I877e176229efd6bd5c08a6b83a2594cc4e57eebe
    Issue-ID: CCSDK-1119
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>