torture: Add missing include for AF_INET

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>

tests/torture.c

@@ -27,6 +27,7 @@
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/socket.h>
 #include <fcntl.h>
 #include <signal.h>