Updated git submodules

Project: policy/engine master 3e642d2fcd9a09a8a40918cf0451cfdafe70e968

Merge "Remove technical debt"

Remove technical debt

* String literals on the left
* Unnecessary initialization of variables
* Change ArrayList to using List
* Remove extra semicolons
* Empty Constructor comments
* Useless parenthesis

I also added a comment on some code that is suspicious. Not comfortable
with changing that code.

Issue-ID: POLICY-482
Change-Id: I89d889737d398d047fab4b25cb5d962ee1ecdd03
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

diff --git a/docs/submodules/policy/engine.git b/docs/submodules/policy/engine.git
index 549cafb..3e642d2 160000 (submodule)
--- a/docs/submodules/policy/engine.git
+++ b/docs/submodules/policy/engine.git
@@ -1 +1 @@
-Subproject commit 549cafbb3b5b5c9298e8c7371835f5c58633349f
+Subproject commit 3e642d2fcd9a09a8a40918cf0451cfdafe70e968