Update git submodules

* Update docs/submodules/policy/parent.git from branch 'master'
  to 4a1ed8a656903f32b2cf134de6f9602412eb3c5c
  - Merge "Revert "AAF Version change for log4j""
  - Revert "AAF Version change for log4j"

    This reverts commit 5014e05e9d93248854d1473d795ec671e2e7ba6b.

    Reason for revert: version doesn't exist

    Issue-ID: POLICY-2623
    Change-Id: I6a4972a3491864fa6072eb493900022c44a85c1f
    Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

diff --git a/docs/submodules/policy/parent.git b/docs/submodules/policy/parent.git
index 3c3ff2d..4a1ed8a 160000 (submodule)
--- a/docs/submodules/policy/parent.git
+++ b/docs/submodules/policy/parent.git
@@ -1 +1 @@
-Subproject commit 3c3ff2d3845889d987ca307e2c87b492c9cff7e5
+Subproject commit 4a1ed8a656903f32b2cf134de6f9602412eb3c5c