Kernel header changes break glibc build

[David Miller]

From: Thomas Graf <tgraf@suug.ch>
Date: Thu, 7 Dec 2006 11:47:21 +0100

> * David Miller <davem@davemloft.net> 2006-12-06 16:56
> > That's enough for me.
> > 
> > Thomas we need to restore things to how they were before.
> > If that means including if_addr.h from rtnetlink.h so be it.
> > 
> > We can't break shit like this, there are no excuses, especially
> > now that we properly frob the headers for userspace consumption
> > in the kernel tree.
> 
> So you want to restore IFLA_RTA/IFLA_PAYLOAD etc. as well?

Just fixup the if_addr.h include for now.