Update git submodules

* Update docs/submodules/policy/engine.git from branch 'master'
  to 9655c9a9f8f20418a7735c72f3479f5b9a9859ba
  - Merge "Reformat PolicyEngineAPI test cases"
  - Reformat PolicyEngineAPI test cases

    Reformat test cases to follow ONAP style
    https://wiki.onap.org/display/DW/Java+code+style

    Format changes mainly consist of conversions of tabs to 4 spaces

    Samsung modifications copyrights added

    Change-Id: Ic161ef7b36a1b83624a832208905b5324b013c59
    Issue-ID: POLICY-1506
    Signed-off-by: kaihlavi <l.kaihlavirt@partner.samsung.com>

diff --git a/docs/submodules/policy/engine.git b/docs/submodules/policy/engine.git
index 4965734..9655c9a 160000 (submodule)
--- a/docs/submodules/policy/engine.git
+++ b/docs/submodules/policy/engine.git
@@ -1 +1 @@
-Subproject commit 49657344fb0d436f97af38e71d31a6f8ddbc28bf
+Subproject commit 9655c9a9f8f20418a7735c72f3479f5b9a9859ba