Allow applications to specify a few other packet-request flow priorities.

Also let Ethernet class recognize EAPOL eth-type when printing.

Change-Id: I52b9d9aec6dfdd07aa49861f8c6b82ed814f638e
diff --git a/utils/misc/src/main/java/org/onlab/packet/Ethernet.java b/utils/misc/src/main/java/org/onlab/packet/Ethernet.java
index 006c32e..5fd07bf 100644
--- a/utils/misc/src/main/java/org/onlab/packet/Ethernet.java
+++ b/utils/misc/src/main/java/org/onlab/packet/Ethernet.java
@@ -700,6 +700,8 @@
             sb.append("\ndata packet");
         } else if (pkt instanceof LLC) {
             sb.append("\nllc packet");
+        } else if (pkt instanceof EAPOL) {
+            sb.append("\neapol");
         } else {
             sb.append("\nunknown packet");
         }