Allow the iwn(4) fw 100 to be compiled into the kernel and update the
relevant manpages.
Minor space/tab cleanups.

Most of them were ripped from the GSoC 2104
SMAP + kpatch project.
This is only a cosmetic change.

Taken from:	Oliver Pinter (op@)
MFC after:	5 days
Merge remote-tracking branch 'freebsd/master' into hardened/current/master