mlx4_core: Use enum value GO_BIT_TIMEOUT_MSECS

Rename GO_BIT_TIMEOUT to GO_BIT_TIMEOUT_MSECS for clarity, and
actually use it as the go bit timeout (instead of having the define
but then ignoring it and using a hard-coded 10 * HZ for the actual
timeout).
Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/net/mlx4/cmd.c

@@ -95,7 +95,7 @@ enum {
 };
 
 enum {
-	GO_BIT_TIMEOUT		= 10000
+	GO_BIT_TIMEOUT_MSECS	= 10000
 };
 
 struct mlx4_cmd_context {
@@ -155,7 +155,7 @@ static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
 
 	end = jiffies;
 	if (event)
-		end += HZ * 10;
+		end += msecs_to_jiffies(GO_BIT_TIMEOUT_MSECS);
 
 	while (cmd_pending(dev)) {
 		if (time_after_eq(jiffies, end))