Revert "PCI: Pull PCI 'latency timer' setup up into the core"

This reverts commit 481da3e3d53ed94e66d31f09dd92eb5cda1ab969.  Needs to
be reworked to build on arches with varying definitions of the latency
timer functions.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
11 files changed