Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Fix another fo-pa of mine... duplicate patches should
not be applied and randy needs coffee in the morning
when working to help keep things sorted out... obviously :-)

Changes for pci and pci-e support
- add bus_space_rmi_pci.c for PCI bus space
- files.xlr update for changes in files
- pcibus.c merged into xlr_pci.c (they were small files with inter-dependencies)
- xlr_pci.c - lot of changes here with few fixes, formatting cleanup
Obtained from: C. Jayachandran (JC) - c.jayachandran@gmail.com

Opps forgot to add this:
- add bus_space_rmi_pci.c for PCI bus space

Obtained from: C. Jayachandran - <c.jayachandran@gmail.com>