Update git submodules

* Update docs/submodules/policy/parent.git from branch 'master'
  to 42b2f87993f6a65a359d91fd87c01d748e26228a
  - Merge "Documentation : rst formating problem"
  - Documentation : rst formating problem

    Fixed formatting in distribution/Distribution-User-Manual.rst and also added missing file drools/Tut_vFW_simulated_onset.JPG

    Issue-ID: POLICY-1986

    Signed-off-by: Saryu Shah <ss3917@att.com>
    Change-Id: I7709d83ddb23ef3b722d01802c49a449f3b0d80a

diff --git a/docs/submodules/policy/parent.git b/docs/submodules/policy/parent.git
index 565db1b..42b2f87 160000 (submodule)
--- a/docs/submodules/policy/parent.git
+++ b/docs/submodules/policy/parent.git
@@ -1 +1 @@
-Subproject commit 565db1bdee727505b9d80fb723e8a7ca85b7c84a
+Subproject commit 42b2f87993f6a65a359d91fd87c01d748e26228a