modify/clean testcases for sctp_stream_reconfiguration

...ill/tests/bsd/sctp/sctp_reconfig/add_incoming_streams.pkt

...ill/tests/bsd/sctp/sctp_reconfig/add_outgoing_streams.pkt

...drill/tests/bsd/sctp/sctp_reconfig/reset_incoming_ssn.pkt

...ests/bsd/sctp/sctp_reconfig/reset_incoming_ssn_passiv.pkt

...drill/tests/bsd/sctp/sctp_reconfig/reset_outgoing_ssn.pkt

...ests/bsd/sctp/sctp_reconfig/reset_outgoing_ssn_passiv.pkt

...acketdrill/tests/bsd/sctp/sctp_reconfig/reset_ssn_tsn.pkt

...ill/tests/bsd/sctp/sctp_reconfig/reset_ssn_tsn_passiv.pkt

...etdrill/tests/bsd/sctp/sctp_reconfig/sctp_add_streams.pkt

...ests/bsd/sctp/sctp_reconfig/sctp_change_streams_event.pkt

...tests/bsd/sctp/sctp_reconfig/sctp_enable_stream_reset.pkt

...etdrill/tests/bsd/sctp/sctp_reconfig/sctp_reset_assoc.pkt

...l/tests/bsd/sctp/sctp_reconfig/sctp_reset_assoc_event.pkt

.../tests/bsd/sctp/sctp_reconfig/sctp_reset_stream_event.pkt

...drill/tests/bsd/sctp/sctp_reconfig/sctp_reset_streams.pkt