Regen after r321017.
Move the SCTP syscalls to netinet with the rest of the SCTP code.

MFC r317845-r317846

r317845:
Provide a freebsd32 implementation of sigqueue()

The previous misuse of sys_sigqueue() was sending random register or
stack garbage to 64-bit targets. The freebsd32 implementation preserves
the sival_int member of value when signaling a 64-bit process.

Document the mixed ABI implementation of union sigval and the
incompability of sival_ptr with pointer integrity schemes.

Reviewed by: kib, wblock
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D10605

r317846:
Regen post r317845.

MFC with: r317845
Sponsored by: DARPA, AFRL

MFC 313564:
Drop the "created from" line from files generated by makesyscalls.sh.

This information is less useful when the generated files are included in
source control along with the source. If needed it can be reconstructed
from the $FreeBSD$ tag in the generated file. Removing this information
from the generated output permits committing the generated files along
with the change to the system call master list without having inconsistent
metadata in the generated files.

Regenerate the affected files along with the MFC.

Regen for r293474.

Regen for r276955 (__getcwd path bug).

Regen for r275986 (ppoll).

Regen.

Regen for r276955 (__getcwd path bug).

Regen for r275986 (ppoll).

Regen.