12547 pci_pci: NULL pointer errors
Reviewed by: Gerg&#337; Doma <domag02@gmail.com>
Approved by: Dan McDonald <danmcd@joyent.com>

6404710 Create #defines for 2's complement of -1 in pci cap library
6404990 Cleanup dead code in pci cap library

6371650 pci capability ddi iterator (lint fix)

6371650 pci capability ddi iterator

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