Updating to ONOS 2.5.5 APIs, sadis 5.5.1 and olt 5.0.0

Change-Id: I7bbaa5e7526fbdcec15dd5f2706fcc482631dd3b
diff --git a/pom.xml b/pom.xml
index 8bd8f27..61b622e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-dependencies</artifactId>
-        <version>2.5.2</version>
+        <version>2.5.5</version>
     </parent>
 
     <groupId>org.opencord</groupId>
@@ -34,8 +34,8 @@
     <url>http://opencord.org</url>
 
     <properties>
-        <sadis.api.version>5.4.0</sadis.api.version>
-        <olt.api.version>4.4.0</olt.api.version>
+        <sadis.api.version>5.5.1</sadis.api.version>
+        <olt.api.version>5.0.0</olt.api.version>
     </properties>
 
     <modules>