Fix oparent version reference

Ensuring we are always using the same oparent version
that is declared in policy/parent.

As part of the work we are doing for security and
critical issues.

Change-Id: Idc6fdd0f613f1fb2ae4bb3c758847884fa4758f6
Issue-ID: POLICY-1059
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
diff --git a/pom.xml b/pom.xml
index d564694..91edfb7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -148,7 +148,7 @@
                     <dependency>
                         <groupId>org.onap.oparent</groupId>
                         <artifactId>checkstyle</artifactId>
-                        <version>1.1.0</version>
+                        <version>${oparent.version}</version>
                         <scope>compile</scope>
                     </dependency>
                 </dependencies>