Updated git submodules

Project: appc master 952cf60abedf9a87694525e6e4b590717e3075a9

Unit test coverage for domainmodel-lib classes

Unit test Coverage for:
1.Vnf.java
2.Vnfc.java
3.Vserver.java

Sonar Link:
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Aappc-dg-domain-model-lib%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fdomainmodel

Change-Id: I7a77a992a1957020a066bcd5676c9a63cc7cd328
Issue-ID: APPC-720
Signed-off-by: shubhada <SV00449682@techmahindra.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 0bddcbb..952cf60 160000
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 0bddcbbc0bc1001c52be6e86b6914285d28a90e2
+Subproject commit 952cf60abedf9a87694525e6e4b590717e3075a9