CORD-414 Editing hash groups buckets in the OF-DPA driver instead of
creating new groups.
Also in this commit - fix for NPE in groups cli, and removal of unnecessary
cpqd-ofdpa3 driver.

Change-Id: I2a5dd183cb38ed901caa5a806791b77e9d92d93c
diff --git a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
index 22c9266..21f00df 100644
--- a/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
+++ b/src/main/java/org/onosproject/segmentrouting/IcmpHandler.java
@@ -168,7 +168,7 @@
                     treatment, ByteBuffer.wrap(payload.serialize()));
             srManager.packetService.emit(packet);
         } else {
-            log.info("Send a MPLS packet as a ICMP response");
+            log.debug("Send a MPLS packet as a ICMP response");
             TrafficTreatment treatment = DefaultTrafficTreatment.builder()
                     .setOutput(outport.port())
                     .build();