ide: remove ide_driver_t typedef

While at it:
- s/struct ide_driver_s/struct ide_driver/
- use to_ide_driver() macro in ide-proc.c

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 0c206c6..4b3bf6a 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -67,7 +67,7 @@
 	blk_put_request(rq);
 
 	if (err == 0 && dev->driver) {
-		ide_driver_t *drv = to_ide_driver(dev->driver);
+		struct ide_driver *drv = to_ide_driver(dev->driver);
 
 		if (drv->resume)
 			drv->resume(drive);