be2net: increase POST timeout for EEH recovery

Sometimes BE requires longer time for POST completion after an EEH
reset.  Increasing the timeout value accordingly.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index c911bfb..9d11dbf 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -294,7 +294,7 @@
 		} else {
 			return 0;
 		}
-	} while (timeout < 20);
+	} while (timeout < 40);
 
 	dev_err(&adapter->pdev->dev, "POST timeout; stage=0x%x\n", stage);
 	return -1;