Updating to ONOS 2.5.5 APIs, sadis 5.5.1

Change-Id: I340dde7cb99782aa9652cebc710c3a6496d33dd4
diff --git a/pom.xml b/pom.xml
index 384fa35..5dd770c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-dependencies</artifactId>
-        <version>2.5.2</version>
+        <version>2.5.5</version>
     </parent>
 
     <groupId>org.opencord</groupId>
@@ -31,7 +31,7 @@
     <description>PPPoE Intermediate Agent</description>
 
     <properties>
-        <sadis.api.version>5.4.0</sadis.api.version>
+        <sadis.api.version>5.5.1</sadis.api.version>
     </properties>
 
     <modules>