MFC 271721:
Explicitly specify MAP_SHARED when mapping the stats file descriptor.
MFC:	r273144, r273146

Merge OpenSSL 1.0.1j.

Relnotes:	yes
MFC:	r272718

Make kern.nswbuf tunable from loader.
Merge remote-tracking branch 'freebsd/stable/10' into hardened/10/aslr