head -r365677 and later do not have the xhci related DMA problem fixed

[Klaus Cucinauomo]

> Am 24.09.2020 um 23:56 schrieb Mark Millard <marklmi at yahoo.com>:
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>>> Am 24.09.2020 um 21:04 schrieb Mark Millard via freebsd-arm <freebsd-arm at freebsd.org>:
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> If so, sorry for the noise.
> 
stay noisy ;-), it has helped often  …..
while I now think it’s probably better to exclude RPI4-UEFI from any support, 
at least  removing it from the Wiki.
A while ago I thought it could help us a lot( at the time where M.Karels and R. Crowston haven’t yet finished 
their fdt-drivers ).
As for now I would think:
It brings us more confusion and unnecessary work than advantages .
maybe that will change at some point...