donauboe: replace excessive udelay with msleep

No driver should spin the CPU for 10ms, so better use
an msleep, which is allowed in the ->suspend function.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/irda/donauboe.c b/drivers/net/irda/donauboe.c
index 4351296..510b9c8 100644
--- a/drivers/net/irda/donauboe.c
+++ b/drivers/net/irda/donauboe.c
@@ -1710,7 +1710,7 @@
 
 /* Flush all packets */
   while ((i--) && (self->txpending))
-    udelay (10000);
+    msleep(10);
 
   spin_lock_irqsave(&self->spinlock, flags);