batman-adv: checkpatch - spaces preferred around that '*'

Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 4cb70bb..b984bc4 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -275,7 +275,7 @@
 	 * max_buffer time
 	 */
 	return batadv_has_timed_out(nc_path->last_valid,
-				    bat_priv->nc.max_buffer_time*10);
+				    bat_priv->nc.max_buffer_time * 10);
 }
 
 /**