Don't redefine in6_addr due to including linux/in6.h; use netinet/in.h instead.

--- include/linux/if_bridge.h.orig	2014-12-28 06:08:02.569567949 +0100
+++ include/linux/if_bridge.h	2014-12-28 06:08:34.736569384 +0100
@@ -15,7 +15,6 @@
 
 #include <linux/types.h>
 #include <linux/if_ether.h>
-#include <linux/in6.h>
 
 #define SYSFS_BRIDGE_ATTR	"bridge"
 #define SYSFS_BRIDGE_FDB	"brforward"