net: bridge: fix br_stp_enable_bridge comment

br_stp_enable_bridge() does take the br->lock spinlock. Fix its wrongly
pasted comment and use the same as br_stp_disable_bridge().

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 984d462..341caa0 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -55,7 +55,7 @@
 		netdev_err(p->dev, "failed to set HW ageing time\n");
 }
 
-/* called under bridge lock */
+/* NO locks held */
 void br_stp_enable_bridge(struct net_bridge *br)
 {
 	struct net_bridge_port *p;