[SDFAB-616] Inconsistent format of port number in DhcpRelay

CircuitId deserialize use custom parsing instead of leveraging
the ConnectPoint class. Unfortunately, this custom parsing
does not parse correctly the portname.

Additionally, fix port number format for hostlocation and dhcprecords
and exclude Dhcp4HandlerImpl from file length checks

Change-Id: I360f26f8dd7de492cb65ad7af05fb85c8e940c33
(cherry picked from commit 61bd673eec2282aff175daff141059870db78c7d)
diff --git a/tools/build/conf/src/main/resources/onos/suppressions.xml b/tools/build/conf/src/main/resources/onos/suppressions.xml
index 3cd63b1..c972216 100644
--- a/tools/build/conf/src/main/resources/onos/suppressions.xml
+++ b/tools/build/conf/src/main/resources/onos/suppressions.xml
@@ -34,6 +34,7 @@
     <suppress files="org.onosproject.segmentrouting.*" checks="AbbreviationAsWordInName" />
     <suppress files="org.onosproject.segmentrouting.DefaultRoutingHandler.java" checks="FileLength" />
     <suppress files="org.onosproject.segmentrouting.mcast.McastHandler" checks="FileLength" />
+    <suppress files="org.onosproject.dhcprelay.Dhcp4HandlerImpl" checks="FileLength" />
 
     <!-- These files carry AT&T copyrights -->
     <suppress files="org.onlab.packet.EAP" checks="RegexpHeader" />