rds: Fix a typo in a comment

s/cold/could/

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-By: Devesh Sharma <devesh.s.sharma@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/rds/send.c

@@ -272,7 +272,7 @@ restart:
 
 			/* Unfortunately, the way Infiniband deals with
 			 * RDMA to a bad MR key is by moving the entire
-			 * queue pair to error state. We cold possibly
+			 * queue pair to error state. We could possibly
 			 * recover from that, but right now we drop the
 			 * connection.
 			 * Therefore, we never retransmit messages with RDMA ops.