Update headers for Linux 4.0, 4.1 definitions

[Szabolcs Nagy]

On 22/06/15 15:55, Joseph Myers wrote:
> This patch updates installed glibc headers for new definitions from
> Linux 4.0 and 4.1 that seem relevant to glibc headers.  In addition, I
> noticed that PF_IB / AF_IB, added in Linux 3.11, were missing for no
> obvious reason, so added those as well.
> 
> Tested for x86_64 (testsuite, and that installed stripped shared
> libraries are unchanged by the patch).
> 

netinet/tcp.h in glibc is behind the 4.1 kernel uapi header too.

i assume they are supposed to be consistent.