bugfix: tools: use pci member
bugfix: tools: use pci member

Tool worked by declaring its own pci utility object instead of using the
one provided.  There are not yet unit-tests associated with the
P2aDataHandler that would have caught this.

Signed-off-by: Patrick Venture <36c53fa43f47f3fd67cb2fc38031827244d18a1f@google.com>
Change-Id: I62cdeb17d298f1db51d8f513c59bfd299fc2884a

openbmc/phosphor-ipmi-flash