Implement L2 load balancing group in OFDPA driver

Also fix confusing comments and variable names
Note: suppress line number checkstyle for Ofdpa2GroupHandler

Change-Id: I00e56b679da1247a7c0ffba838c9df329ab54f11
diff --git a/tools/build/conf/src/main/resources/onos/suppressions.xml b/tools/build/conf/src/main/resources/onos/suppressions.xml
index 4f4f0d5..fcb8a06 100644
--- a/tools/build/conf/src/main/resources/onos/suppressions.xml
+++ b/tools/build/conf/src/main/resources/onos/suppressions.xml
@@ -54,6 +54,8 @@
 
     <suppress checks="FileLength"
               files=".*/SegmentRoutingManager.java"/>
+    <suppress checks="FileLength"
+              files=".*/Ofdpa2GroupHandler.java"/>
 
     <!-- Suppressions for yangutils generated code -->
     <suppress files="org.onosproject.yang.gen.v1.*" checks="Javadoc.*" />