Fix @param tag references in Javadoc comments

The changes are done in packages under net.onrc.onos

- Change the names to point references correctly
- Delete @param tags when the references are not valid

Change-Id: Ib429c714675dfe6f229726eac7a85e52041bcfd0
diff --git a/src/main/java/net/onrc/onos/core/packet/DHCP.java b/src/main/java/net/onrc/onos/core/packet/DHCP.java
index 77842ae..61b0335 100644
--- a/src/main/java/net/onrc/onos/core/packet/DHCP.java
+++ b/src/main/java/net/onrc/onos/core/packet/DHCP.java
@@ -284,7 +284,7 @@
     /**
      * Gets a specific DHCP option parameter.
      *
-     * @param opetionCode The option code to get
+     * @param optionCode The option code to get
      * @return The value of the option if it exists, null otherwise
      */
     public DHCPOption getOption(DHCPOptionCode optionCode) {