[NETLINK]: Restore API compatibility of address and neighbour bits

[David Miller]

From: Thomas Graf <tgraf@suug.ch>
Date: Thu, 7 Dec 2006 11:55:02 +0100

> Restore API compatibility due to bits moved from rtnetlink.h to
> separate headers.
> 
> Signed-off-by: Thomas Graf <tgraf@suug.ch>

Applied, thanks for taking care of this Thomas.