iputils: make iputils.h self-contained

We need to include <stdint.h> to define 'uint32_t' and <netinet/in.h>
for 'in_addr_t' and 'struct in6_addr'.
Signed-off-by: NGuillaume Nault <g.nault@alphalink.fr>

accel-pppd/libnetlink/iputils.h

@@ -2,6 +2,8 @@
 #define __IPLINK_H
 
 #include <linux/if_link.h>
+#include <netinet/in.h>
+#include <stdint.h>
 
 typedef int (*iplink_list_func)(int index, int flags, const char *name, int iflink, int vid, void *arg);