Use released Oslo/Potassium parent poms

Use released version of parent poms for ONAP Oslo release

Issue-ID: CCSDK-3990
Change-Id: Id7d68571c71cf42ff1cb878a611ac0e867117bd7
Signed-off-by: Dan Timoney <dtimoney@att.com>
diff --git a/sdnr/wt/common-yang/pom.xml b/sdnr/wt/common-yang/pom.xml
index 909f7d1..0176c52 100755
--- a/sdnr/wt/common-yang/pom.xml
+++ b/sdnr/wt/common-yang/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.onap.ccsdk.parent</groupId>
         <artifactId>odlparent-lite</artifactId>
-        <version>2.8.0-SNAPSHOT</version>
+        <version>2.8.0</version>
         <relativePath/>
     </parent>