[ONOS-7238] fix ICMP checksum error of fabric.p4

Change-Id: I921504ccdb295488bbea8636f412137bbab0d8f5
diff --git a/pipelines/fabric/src/main/resources/include/parser.p4 b/pipelines/fabric/src/main/resources/include/parser.p4
index 0e13cfd..d191ff9 100644
--- a/pipelines/fabric/src/main/resources/include/parser.p4
+++ b/pipelines/fabric/src/main/resources/include/parser.p4
@@ -143,6 +143,7 @@
         packet.emit(hdr.ipv6);
         packet.emit(hdr.tcp);
         packet.emit(hdr.udp);
+        packet.emit(hdr.icmp);
     }
 }