John Baldwin 2cfd0c4638 - Add some registers defined in PCI 3.0 including new AER bits.
- Add constants for the rest of the fields in the PCI-express device
  capability and control registers.
- Tweak some of the recently added PCI-e capability constants (always
  use hex for offsets in config space, and include a shortened
  version of the relevant register in the name of field constants).

MFC after:	1 week
2012-09-13 19:05:24 +00:00
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