ata: sata_inic162x fix a spelling issue

Fixed a warning message spelling issue.
Signed-off-by: John Oldman <john.oldman@polehill.co.uk>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/ata/sata_inic162x.c

@@ -145,7 +145,7 @@ enum {
 
 	/* PORT_IDMA_CTL bits */
 	IDMA_CTL_RST_ATA	= (1 << 2),  /* hardreset ATA bus */
-	IDMA_CTL_RST_IDMA	= (1 << 5),  /* reset IDMA machinary */
+	IDMA_CTL_RST_IDMA	= (1 << 5),  /* reset IDMA machinery */
 	IDMA_CTL_GO		= (1 << 7),  /* IDMA mode go */
 	IDMA_CTL_ATA_NIEN	= (1 << 8),  /* ATA IRQ disable */