Update git submodules

* Update docs/submodules/policy/parent.git from branch 'master'
  to e47eb669ae1d5a36f8b28163778ba3c47af3243d
  - Start El Alto Early Drop Release notes

    Start the release notes - will not be able to finish until
    Integration testing is complete and all bugs are closed etc.

    Issue-ID: POLICY-1974
    Change-Id: I0e0ce000dba81e2e0c2496c33b7527df74f9ca6d
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

diff --git a/docs/submodules/policy/parent.git b/docs/submodules/policy/parent.git
index 3a30861..e47eb66 160000 (submodule)
--- a/docs/submodules/policy/parent.git
+++ b/docs/submodules/policy/parent.git
@@ -1 +1 @@
-Subproject commit 3a3086180abb951a2e0a919d4a38895b53ff332e
+Subproject commit e47eb669ae1d5a36f8b28163778ba3c47af3243d