qat: Intel 4xxx Series driver API extension

This commit introduces:
- Quick Assist API update for partial decompress and zero padding.
- Refactor of UIO locking.
- VF driver hotplug fix.
- Minor code style fixes for firmware API.

Patch co-authored by: Krzysztof Zdziarski <krzysztofx.zdziarski@intel.com>
Patch co-authored by: Michal Gulbicki <michalx.gulbicki@intel.com>
Patch co-authored by: Piotr Kasierski <piotrx.kasierski@intel.com>
Patch co-authored by: Karol Grzadziel <karolx.grzadziel@intel.com>

Sponsored by: Intel Corporation
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D41613

sys: Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

qat: Add Intel® 4xxx Series VF driver support

Overview:
Intel(R) QuickAssist Technology (Intel(R) QAT) provides hardware
acceleration for offloading security, authentication and compression
services from the CPU, thus significantly increasing the performance and
efficiency of standard platform solutions.

This commit introduces:
- Intel® 4xxx Series VF driver support.
- Device configurability via sysctls.
- UIO support for Intel® 4xxx Series devices.

Patch co-authored by: Krzysztof Zdziarski <krzysztofx.zdziarski@intel.com>
Patch co-authored by: Michal Gulbicki <michalx.gulbicki@intel.com>
Patch co-authored by: Julian Grajkowski <julianx.grajkowski@intel.com>
Patch co-authored by: Piotr Kasierski <piotrx.kasierski@intel.com>
Patch co-authored by: Lukasz Kolodzinski <lukaszx.kolodzinski@intel.com>
Patch co-authored by: Karol Grzadziel <karolx.grzadziel@intel.com>

Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D39850