hidraw(4): Add HIDRAW_MAKE_UHID_ALIAS kernel option

which installs /dev/uhid# alias to hidraw character device for
compatibility with some existing uhid(4) users like Firefox.
As side effect it rena

hidraw(4): Add HIDRAW_MAKE_UHID_ALIAS kernel option

which installs /dev/uhid# alias to hidraw character device for
compatibility with some existing uhid(4) users like Firefox.
As side effect it renames traditional uhid(4) driver to hidraw
to make possible using of common unit number allocator.

Requested by: Greg V <greg_unrelenting.technology>
Reviewed by: hselasky (as part of D27992)

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hid: Import hidraw(4) - driver for access to raw HID device data

This driver provides raw access to HID devices through uhid(4)-compatible
interface and is based on pre-8.x uhid(4) code. Unlike uhid

hid: Import hidraw(4) - driver for access to raw HID device data

This driver provides raw access to HID devices through uhid(4)-compatible
interface and is based on pre-8.x uhid(4) code. Unlike uhid(4) it does
not take devices in to monopoly ownership and allows parallel access
from other drivers.

hidraw supports Linux's hidraw-compatible interface as well.

Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D27992

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