sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

SPDX: license IDs for some ISC-related files.

[ath_hal] add debugging level for spectral scan.

HAL additions to enable MCI Bluetooth coexistence in the AR9300 HAL.

* Add the rest of the missing GPIO output mux types;
* Add in a new debug category;
* And a new MCI btcoex configuration option in ath_hal.ah_config

Obtained from: Qualcomm Atheros

Add new HAL configuration features for the updated AR9300 HAL.

Extend the debugging flags to include some AR9300 HAL related options.

Obtained from: Qualcomm Atheros

Fix the HAL debugging to only use one bit to mark a message as unmaskable.

Whilst I'm here, remove the duplication of the #define.

Add a new flag - HAL_DEBUG_UNMASKABLE - which always logs a debug message
(when debug is enabled) no matter what.

Some BB hang changes:

* Add Howl (ar9130) to the list of chips that have DFS/BB/MAC hangs
* Don't treat unknown BB hangs as fatal; ath9k/Atheros HAL don't
treat it as such.
* Add HAL_DEBUG_DFS to the debug fields in ath_hal/ah_debug.h

The BB hang check simply loops over an observation register checking
for a stuck state engine, but it can happen under high traffic
conditions. Ath9k and the Atheros HAL simply log a debug message and
continue.

Private to FreeBSD:

* Add HAL_DEBUG_HANG to the debug fields
* Change the hang debugging to HAL_DEBUG_HANG rather than HAL_DEBUG_DFS
like in the Atheros HAL.

Obtained from: Atheros

More kite diversity related changes.

* add a diversity flag to the HAL debugging section
* add a check to make sure the kite diversity code doesn't run
on boards that don't require it, as not all Kite chips will
implement it.
* add some debug statements when the diversity code makes
changes to the antenna diversity/combining setup.

* fix HAL_DEBUG_INTERRUPT to be a separate bit, it was overlapping with
something else
* add HAL_DEBUG_GPIO, for some GPIO related debugging I'm tinkering with
at the moment.

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

MFC r204644:
Replace Id keyword with FreeBSD keyword and set the svn props correctly.
No functional change.

Approved by: re (bz)

Replace Id keyword with FreeBSD keyword and set the svn props correctly.
No functional change.