[4.1] a9b355b Add missing header on NetBSD

[Lasse Karstensen]

commit a9b355be8c9cb64e0160ab3566f2891bdb00aca4
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Mon Dec 14 18:52:59 2015 +0000

    Add missing header on NetBSD

diff --git a/lib/libvarnish/vtcp.c b/lib/libvarnish/vtcp.c
index cb4d3c4..0c6a312 100644
--- a/lib/libvarnish/vtcp.c
+++ b/lib/libvarnish/vtcp.c
@@ -32,6 +32,7 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/ioctl.h>
+#include <sys/time.h>
 #ifdef HAVE_SYS_FILIO_H
 #  include <sys/filio.h>
 #endif