ide: replace special_t typedef by IDE_SFLAG_* flags

Replace:
- special_t typedef by IDE_SFLAG_* flags
- 'special_t special' ide_drive_t's field by 'u8 special_flags' one

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index f400eb4..8cab3c2 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -166,7 +166,7 @@
 	if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) {
 		if (custom && tf->command == ATA_CMD_SET_MULTI) {
 			drive->mult_req = drive->mult_count = 0;
-			drive->special.b.recalibrate = 1;
+			drive->special_flags |= IDE_SFLAG_RECALIBRATE;
 			(void)ide_dump_status(drive, __func__, stat);
 			return ide_stopped;
 		} else if (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) {