netlink: Use rhashtable max_size instead of max_shift

This patch converts netlink to use rhashtable max_size instead
of the obsolete max_shift.
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/netlink/af_netlink.c

@@ -3123,7 +3123,7 @@ static int __init netlink_proto_init(void)
 		.key_offset = offsetof(struct netlink_sock, portid),
 		.key_len = sizeof(u32), /* portid */
 		.hashfn = jhash,
-		.max_shift = 16, /* 64K */
+		.max_size = 65536,
 	};
 
 	if (err != 0)