MF10 r273000 (r272750 in head)

MF10 r273000 (r272750 in head)
Ensure that the number of stream reported in srs_number_streams is
consistent with the amount of data provided in the SCTP_RESET_STREAMS
socket option.
Thanks to Peter Bostroem from Google for drawing my attention to
this part of the code.

MF10 r273001 (r272751 in head):
Ensure that the list of streams sent in a stream reset parameter fits
in an mbuf-cluster.
Thanks to Peter Bostroem for drawing my attention to this part of the code.

MF10 r273002 (r272841 in head):
Ensure that the flags field of sctp_tmit_chunks is initialized.
Thanks to Peter Bostroem from Google for reporting the issue.

Approved by: re (marius)

git-svn-id: svn://svn.freebsd.org/base/releng/10.1@273106 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f