[PATCHv4 0/5] HID: initial USI support patches

[Tero Kristo]

Hi,

As per request, this set contains initial USI support patches targeted
for 5.17. Any patches still under discussion dropped from this set.
Patch #3 is a split from previous revision, only containing the HID usage
definitions.

Series is based on top of hid/for-next.

-Tero