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

(cherry picked from commit 22cf89c938886d14f5796fc49f9f020c23ea8eaf)