[NET] add missing include to inet.h

Signed-off-by: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Signed-off-by: David S. Miller <davem@redhat.com>

include/linux/inet.h

@@ -43,6 +43,8 @@
 #define _LINUX_INET_H
 
 #ifdef __KERNEL__
+#include <linux/types.h>
+
 extern __u32 in_aton(const char *str);
 #endif
 #endif	/* _LINUX_INET_H */