Refactored LLDP link discovery to be shared by multiple providers

Change-Id: Ia2253ff6bb39186e936ddbaff0c416aa5be6e117
diff --git a/providers/lldp/pom.xml b/providers/lldp/pom.xml
index 03f945d..65afe07 100644
--- a/providers/lldp/pom.xml
+++ b/providers/lldp/pom.xml
@@ -48,6 +48,12 @@
 
         <dependency>
             <groupId>org.onosproject</groupId>
+            <artifactId>onos-lldp-provider-common</artifactId>
+            <version>1.5.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.onosproject</groupId>
             <artifactId>onos-api</artifactId>
             <classifier>tests</classifier>
             <scope>test</scope>