- Make PCI_QUIRK_MSI_INTX_BUG work by using the ID of the actual PCI device
  for the lookup.
- For devices affected by PCI_QUIRK_MSI_INTX_BUG, ensure PCIM_CMD_INTxDIS
  is cleared when using MSI/MSI-X.
- Employ PCI_QUIRK_MSI_INTX_BUG for BCM5714(S)/BCM5715(S)/BCM5780(S) rather
  than clearing PCIM_CMD_INTxDIS unconditionally for all devices in bge(4).

MFC after:	3 days