bridge: correct the comment for file br_sysfs_br.c

br_sysfs_if.c is for sysfs attributes of bridge ports, while br_sysfs_br.c is for sysfs attributes of bridge itself. Correct the comment here.

---
 net/bridge/br_sysfs_br.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 394bb96..3b9637f 100644
@@ -1,5 +1,5 @@
 /*
- *	Sysfs attributes of bridge ports
+ *	Sysfs attributes of bridge
  *	Linux ethernet bridge
  *
  *	Authors:

1.7.10.4

From: Wang Sheng-Hui <[email protected]>
Date: Tue, 06 Aug 2013 08:44:46 +0800

Applied.