[LAPB] net/lapb/lapb_iface.c: use LIST_HEAD instead of LIST_HEAD_INIT

single list_head variable initialized with LIST_HEAD_INIT could almost
always can be replaced with LIST_HEAD declaration, this shrinks the code
and looks better.
Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/lapb/lapb_iface.c

@@ -39,7 +39,7 @@
 #include <linux/init.h>
 #include <net/lapb.h>
 
-static struct list_head lapb_list = LIST_HEAD_INIT(lapb_list);
+static LIST_HEAD(lapb_list);
 static DEFINE_RWLOCK(lapb_list_lock);
 
 /*