[PATCHv2 net 1/3] samples/bpf: Fix build breakage with map_perf_test_user.c

[David Miller]

From: "Naveen N. Rao" <naveen.n.rao at linux.vnet.ibm.com>
Date: Mon,  4 Apr 2016 22:31:32 +0530

> Building BPF samples is failing with the below error:
 ...
> Fix this by including the necessary header file.
> 
> Cc: Alexei Starovoitov <ast at fb.com>
> Cc: Daniel Borkmann <daniel at iogearbox.net>
> Cc: David S. Miller <davem at davemloft.net>
> Cc: Ananth N Mavinakayanahalli <ananth at in.ibm.com>
> Cc: Michael Ellerman <mpe at ellerman.id.au>
> Acked-by: Alexei Starovoitov <ast at kernel.org>
> Signed-off-by: Naveen N. Rao <naveen.n.rao at linux.vnet.ibm.com>

Applied.