Make sfq-queue hash the same as the fq_codel hash

The sfq-queue hash did not include protocol.

Both are wrong in that they should (MUST) also include
port numbers, and it would be best if the hash resembled
the flow_dissector exactly, in linux - this will get rid
of a boost dependency as well.
Preturb is not a word. Peturb is a word.

While this speling error exists in the code there's no need
to compound it.