MFC 260910:

MFC 260910:
- Allow PCI devices that are attached to a driver to be identified by their
  device name instead of just the selector.
- Accept an optional device argument to -l to restrict the output to only
  listing details about a single device.  This is mostly useful in
  conjunction with other flags like -e or -c to allow a user to query
  details about a single device.

git-svn-id: svn://svn.freebsd.org/base/stable/9@261250 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f