Update libsrtp to version 2.0

crypto/test/datatypes_driver.c

 /*
  * datatypes_driver.c
  *
  * a test driver for crypto/math datatypes
  *
  * David A. McGrew
  * Cisco Systems, Inc.
  */
 
 /*
@@ skipping 33 matching lines @@
  */
 
 
 #ifdef HAVE_CONFIG_H
     #include <config.h>
 #endif
 
 #include <stdio.h>            /* for printf() */
 #include <string.h>           /* for strlen() */
 #include "datatypes.h"
+#include "util.h"
 
 void
 byte_order(void);
 
 void
 test_hex_string_funcs(void);
 
 void
 print_string(char *s);
 
@@ skipping 168 matching lines @@
 
   y = 1234;
 
   printf("1234: %0llx\n", (unsigned long long)y);
   printf("as octet string: %s\n", 
          octet_string_hex_string((uint8_t *) &y, 8));
   y = be64_to_cpu(y);
   printf("bswapped octet string: %s\n", 
          octet_string_hex_string((uint8_t *) &y, 8));
 }