Changeset 9153:cf12fe204e53
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Device: Remove overloaded pio_latency parameter

This patch removes the overloading of the parameter, which seems both
redundant, and possibly incorrect.

The PciConfigAll now also uses a Param.Latency rather than a
Param.Tick. For backwards compatibility it still sets the pio_latency
to 1 tick. All the comments have also been updated to not state that
it is in simticks when it is not necessarily the case.

util/regress all passing (disregarding t1000 and eio)