libucl: vendor import snapshort 20210314(cherry picked from commit a0409676120c1e558d0ade943019934e0f15118d)
Import libucl 0.8.0
Update libucl to latest git snapshot (20151027)
Update libucl to git version 8d3b186
Add quirk to disable 64-bit XHCI DMA after r276717.Requested by: Gary Jennejohn <[email protected]>MFC after: 3 days