Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Add firmware for the Intel 2030 and variants.

Submitted by: Cedric GROSS <cg@gross.info>
Obtained from: Linux, Intel

Add firmware images for the 6000 series g2a and g2b adapters.

- Update 6000 firmware to 9.221.4.1
- Add 6050 firmware

MFC after: 2 weeks

iwn(4) update. Notable changes:
* new firmware
* untested support for 1000 and 6000 series
* bgscan support
* remove unnecessary RXON changes
* allow setting of country/regdomain by enforcing channel flags read
from the EEPROM
* suspend/resume fixes
* RF kill switch fixes
* LED adjustments
* several bus_dma*() related fixes
* addressed some LORs
* many other bug fixes

Submitted by: Bernhard Schmidt <bschmidt at techwires.net>
Obtained from: Brandon Gooch <jamesbrandongooch at gmail dot com> (LED
related changes), Benjamin Kaduk <kaduk at mit dot edu>
(LOR fixes), OpenBSD

Updates to the iwn driver:
* iwnfw has now been split into individual modules so autoloading of
firmware module(s) does work again.
* Changes have been made to RUN -> AUTH transition, this should fix the
issue reported by Glen and others.
* Brandon reported issues in iwn_cmd() with large commands, those have
been fixed to.
* DEAUTH is now handled correctly.

Submitted by: Bernhard Schmidt <bschmidt at techwires.net>

Updated iwn(4) driver supporting the newer series, 5000, 5150 and 5300.

Submitted by: Bernhard Schmidt <bschmidt at techwires.net>

remove license ack requirement; this was never needed

Reviewed by: core

Intel 4965 wireless driver (derived from openbsd driver of the same name)