Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 3098fe0ae72dda55600be53069cc336c0c281229
  - Merge "Added AAF SSL certs related changes"
  - Added AAF SSL certs related changes

    if AAF_SSL_CERTS_ENABLED environment variable is
    turned on it will try initialize other environment
    variables related to AAF SSL certs. SO OOM application
    overrides will be dynamically configured whether or not
    to use AAF SSL certs.

    Issue-ID: SO-2451
    Signed-off-by: Ramesh Parthasarathy(rp6768)<ramesh.parthasarathy@att.com>
    Change-Id: I46eb8fa2f8f790232635a3e1926fd2464c48d173