[libata] Bump versions

Update major version for libata, and several drivers.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
index 322890b..67c3d29 100644
--- a/drivers/scsi/sata_via.c
+++ b/drivers/scsi/sata_via.c
@@ -47,7 +47,7 @@
 #include <asm/io.h>
 
 #define DRV_NAME	"sata_via"
-#define DRV_VERSION	"1.2"
+#define DRV_VERSION	"2.0"
 
 enum board_ids_enum {
 	vt6420,