ide,ata: Rename ATA_IDX to ATA_SENSE

ATA-8 defines bit 1 as 'ATA_SENSE', not 'ATA_IDX'.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 681520f..e3cb41c 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -177,7 +177,7 @@
 	ATA_DSC			= (1 << 4),	/* drive seek complete */
 	ATA_DRQ			= (1 << 3),	/* data request i/o */
 	ATA_CORR		= (1 << 2),	/* corrected data error */
-	ATA_IDX			= (1 << 1),	/* index */
+	ATA_SENSE		= (1 << 1),	/* sense code available */
 	ATA_ERR			= (1 << 0),	/* have an error */
 	ATA_SRST		= (1 << 2),	/* software reset */
 	ATA_ICRC		= (1 << 7),	/* interface CRC error */