Sort hfi[] to match the definitions, and add a missing entry that found.

Sorting them to match the definitions of the hfi variables makes it
easier to compare the two lists.

Comparing the lists found a missing entry; add it.

Change-Id: I3517667336b1355195c5a227f0d02f1740a7c4cd
Reviewed-on: https://code.wireshark.org/review/3757
Reviewed-by: Guy Harris <guy@alum.mit.edu>