fix missing dependencies to adapter

Change-Id: I7f8647d8d47d7e0384cebf3c06ba992bd9e13826
diff --git a/providers/ovsdb/device/pom.xml b/providers/ovsdb/device/pom.xml
index ab86dfb..548415f 100644
--- a/providers/ovsdb/device/pom.xml
+++ b/providers/ovsdb/device/pom.xml
@@ -34,6 +34,14 @@
             <artifactId>junit</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-api</artifactId>
+            <version>${project.version}</version>
+            <classifier>tests</classifier>
+        </dependency>
+
     </dependencies>
 
 </project>