dmaengine: ioat: Fix spelling mistake "idel" -> "idle"

There is a spelling mistake in the module description. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20221004160913.154739-1-colin.i.king@gmail.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/ioat/dma.c

@@ -33,7 +33,7 @@ MODULE_PARM_DESC(completion_timeout,
 static int idle_timeout = 2000;
 module_param(idle_timeout, int, 0644);
 MODULE_PARM_DESC(idle_timeout,
-		"set ioat idel timeout [msec] (default 2000 [msec])");
+		"set ioat idle timeout [msec] (default 2000 [msec])");
 
 #define IDLE_TIMEOUT msecs_to_jiffies(idle_timeout)
 #define COMPLETION_TIMEOUT msecs_to_jiffies(completion_timeout)