libata: release prep (bump versions, etc.)

- bump versions where necessary
- remove two duplicated+outdated doc comments
- add MODULE_VERSION() to AHCI driver
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index d90430b..3e7f4843 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -26,7 +26,7 @@
 #define __LIBATA_H__
 
 #define DRV_NAME	"libata"
-#define DRV_VERSION	"1.11"	/* must be exactly four chars */
+#define DRV_VERSION	"1.12"	/* must be exactly four chars */
 
 struct ata_scsi_args {
 	u16			*id;