ide: add ->mwdma_mask and ->swdma_mask to ide_pci_device_t (take 2)

* Add ->mwdma_mask and ->swdma_mask to ide_pci_device_t.

* Set ide_hwif_t DMA masks using DMA masks from ide_pci_device_t in
  setup-pci.c::ide_pci_setup_ports() (iff DMA base is valid and ->init_hwif
  method may still override them).

* Convert IDE PCI host drivers to use ide_pci_device_t DMA masks.

While at it:

* Use ATA_{UDMA,MWDMA,SWDMA}* defines.

* hpt34x.c: add separate ide_pci_device_t instances for HPT343 and HPT345.

* serverworks.c: fix DMA masks being set before checking DMA base.

v2:
* Add missing masks to DECLARE_GENERIC_PCI_DEV() macro.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index 3596ec3..611d0f2 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -591,8 +591,8 @@
 	if (hwif->dma_base == 0)
 		return;
 
-	hwif->ultra_mask = 0x7f;
-	hwif->mwdma_mask = 0x07;
+	hwif->ultra_mask = ATA_UDMA6;
+	hwif->mwdma_mask = ATA_MWDMA2;
 
 	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
 		hwif->cbl = ata66_it821x(hwif);