[SERIAL] Fix supprot for AFAVLAB 8port boards in 2.6.x

I didn't yet use one of my AFAVLAB boards with 2.6.x until now.  The
upper 4 ports are not detected at all.  I suppose the bug was
introduced while porting the driver from 2.4.x.

Please consider applying the following patch.  It also adds support
for a new 8 port board called P030.

drivers/pci/pci.ids

@@ -5601,6 +5601,8 @@
 14da  National Aerospace Laboratories
 14db  AFAVLAB Technology Inc
 	2120  TK9902
+	2180  P028
+	2182  P030
 14dc  Amplicon Liveline Ltd
 	0000  PCI230
 	0001  PCI242

drivers/serial/8250_pci.c

@@ -145,8 +145,10 @@ afavlab_setup(struct pci_dev *dev, struct pci_board *board,
 	bar = FL_GET_BASE(board->flags);
 	if (idx < 4)
 		bar += idx;
-	else
+	else {
+		bar = 4;
 		offset += (idx - 4) * board->uart_offset;
+	}
 
 	return setup_port(dev, req, bar, offset, board->reg_shift);
 }
@@ -1891,6 +1893,9 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_AFAVLAB, PCI_DEVICE_ID_AFAVLAB_P028,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_b0_bt_8_115200 },
+	{	PCI_VENDOR_ID_AFAVLAB, PCI_DEVICE_ID_AFAVLAB_P030,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_115200 },
 
 	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_DSERIAL,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,