Added the BusLogic BT-640A MCA;

Fixed the MCA write function of the AHA-1640 MCA - the host ID is now read from the correct variable and the sync and parity check values are now read as well.

src/scsi/scsi.c

@@ -71,6 +71,7 @@ static SCSI_CARD scsi_cards[] = {
     { "[ISA] Ranco RT1000B",	"rt1000b",	&scsi_rt1000b_device, NULL		  },
     { "[ISA] Trantor T130B",	"t130b",	&scsi_t130b_device,   NULL		  },
     { "[MCA] Adaptec AHA-1640",	"aha1640",	&aha1640_device,      x54x_device_reset   },
+    { "[MCA] BusLogic BT-640A",	"bt640a",	&buslogic_640a_device,BuslogicDeviceReset },
     { "[PCI] BusLogic BT-958D",	"bt958d",	&buslogic_pci_device, BuslogicDeviceReset },
     { "",			"",		NULL,		      NULL		  },
 };