Updated git submodules

Project: appc master 152f0bde91a69c33bc4dba873f5c2a4789655c71

Unit test coverage

Unit test coverage for:
1. Vnfc.java
2. SDCReference.java
Sonar-Link:
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Aappc-sdc-listener-bundle%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fsdc%2Fartifacts%2Fobject

Change-Id: I34c15904bc0df7c537ad448b748add847ab863bd
Issue-ID: APPC-786
Signed-off-by: amshegokar <AS00500801@techmahindra.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index b85aa6a..152f0bd 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit b85aa6a7d42f70811f86f2f750c29395ce8dbd08
+Subproject commit 152f0bde91a69c33bc4dba873f5c2a4789655c71