* sys/linux: extract USB HID ids
As it turns out the HID kernel subsystem registers only one USB driver that
checks that the interface of the connected device has HID class and then looks
up its own list of vendor/device ids to find a matching driver. This means
that we currently don't generate proper vendor/device ids for USB HID devices.
This patch updates the syz-usbgen tool to also extract USB HID vendor/device
ids from a running kernel and makes the generated descriptions for HID devices
to be patched using the extracted ids.
This patch also contains some minor improvements to USB descriptions
(better HID descriptions and more replies for some USB classes/drivers).
* sys/linux: run make generate
This commit adds syzkaller descriptions for USB fuzzing. The descriptions in
vusb.txt are written manually and cover different kinds of USB descriptors.
The descriptions in init_vusb_ids.go are generated automanitally by the
syz-usbgen tool and contain the vendor, device and some other IDs that
map to different USB drivers.
