ide: fix comment typo in ide.h

Fix typo in the comment to the 'dma_mode' field of the 'struct ide_drive_s'
introduced by the commit 3fccaa192b9501e79a57e02e62b6bf420d2b461e (ide: add
drive->dma_mode field).

Whilt at it, convert spaces to a tab in the declaration of the neighbouring
'dn' field...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

authored by Sergei Shtylyov and committed by David S. Miller 54a4ec46 720fc22a

+2 -2
+2 -2
include/linux/ide.h
··· 516 516 u8 current_speed; /* current transfer rate set */ 517 517 u8 desired_speed; /* desired transfer rate set */ 518 518 u8 pio_mode; /* for ->set_pio_mode _only_ */ 519 - u8 dma_mode; /* for ->dma_pio_mode _only_ */ 520 - u8 dn; /* now wide spread use */ 519 + u8 dma_mode; /* for ->set_dma_mode _only_ */ 520 + u8 dn; /* now wide spread use */ 521 521 u8 acoustic; /* acoustic management */ 522 522 u8 media; /* disk, cdrom, tape, floppy, ... */ 523 523 u8 ready_stat; /* min status value for drive ready */