net: cleanup include/net

This cleanup patch puts struct/union/enum opening braces,
in first line to ease grep games.

struct something
{

becomes :

struct something {

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/dn_fib.h b/include/net/dn_fib.h
index c378be7..52da6c3 100644
--- a/include/net/dn_fib.h
+++ b/include/net/dn_fib.h
@@ -4,8 +4,7 @@
 /* WARNING: The ordering of these elements must match ordering
  *          of RTA_* rtnetlink attribute numbers.
  */
-struct dn_kern_rta
-{
+struct dn_kern_rta {
         void            *rta_dst;
         void            *rta_src;
         int             *rta_iif;