Update git submodules

* Update docs/submodules/policy/parent.git from branch 'master'
  to f228f68c6b12e80c27f780852382e8abd3c52dcc
  - Merge "Fix index for documentation"
  - Fix index for documentation

    Index seems to be missing to syntax
    Added missing items
    Renamed architecture header

    Issue-ID: POLICY-1676
    Change-Id: Ib3f18de47bf0fa827d21b64fce4b6485783ad636
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>