MFp4:

MFp4:
o Fix MFC cards.  We were bogusly setting CCR_IOBASE[01] and CCR_IOLIMIT.
  now when we activate the resource, we adjust these for MFC cards, per the
  spec.
o Change type of pf_mfc_* to be bus_addr_t, which is more correct than
  long.

This makes my 3C362D/3C363D and 3CXEM556 cards work!  Woo Hoo!