[libata] bump versions

Bump versions based on changes submitted during 2.6.21 merge window.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 47a1e09..3c760d0 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -25,7 +25,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME "pata_amd"
-#define DRV_VERSION "0.2.7"
+#define DRV_VERSION "0.2.8"
 
 /**
  *	timing_setup		-	shared timing computation and load