Describe the USB devices in the devicetree so they can get
generated into the SSDT and presented to the OS.
This was tested on an eve board and the resulting SSDT was
verified to show the expected values in _UPC and _PLD.
Change-Id: I292426f588ea74d61a5c4e4b01386bb18834c117
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/26176
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
283b01db40