libata: bump versions

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
index 80126f8..8133017 100644
--- a/drivers/ata/sata_vsc.c
+++ b/drivers/ata/sata_vsc.c
@@ -47,7 +47,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME	"sata_vsc"
-#define DRV_VERSION	"2.1"
+#define DRV_VERSION	"2.2"
 
 enum {
 	VSC_MMIO_BAR			= 0,