[SCSI] aacraid: Add timeout for events

Received from Mark Salyzyn

Plug and play actions resulting from event sequences shall time out if
they take longer than 30 seconds to complete.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 51c96ca..c251789 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -788,6 +788,7 @@
 	u64		size;
 	u32		type;
 	u32		config_waiting_on;
+	unsigned long	config_waiting_stamp;
 	u16		queue_depth;
 	u8		config_needed;
 	u8		valid;