PCI: Apply Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices

Only apply the Cavium ACS quirk to devices with ID in the range
0xa000-0xa0ff.  These are the on-chip PCI devices for CN81xx/CN83xx/CN88xx.

Fixes: b404bcfbf035 ("PCI: Add ACS quirk for all Cavium devices")
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Manish Jaggi <mjaggi@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>

drivers/pci/quirks.c

@@ -4094,6 +4094,9 @@ static int pci_quirk_cavium_acs(struct pci_dev *dev, u16 acs_flags)
 	acs_flags &= ~(PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR |
 		       PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT);
 
+	if (!((dev->device >= 0xa000) && (dev->device <= 0xa0ff)))
+		return -ENOTTY;
+
 	return acs_flags ? 0 : 1;
 }