fix failsafe on broadcom, send netlink events in diag when running linux 2.6

SVN-Revision: 7722

target/linux/brcm-2.4/base-files/default/etc/hotplug2-init.rules

@@ -0,0 +1,12 @@
+DEVICENAME ~~ (tun|tap[0-9]) {
+	makedev /dev/net/%DEVICENAME% 0644
+	next
+}
+
+DEVPATH is set {
+	makedev /dev/%DEVICENAME% 0644
+}
+
+SUBSYSTEM ~~ button {
+	exec kill -USR1 1 ;
+}