Update libsrtp to upstream 1.5.0

srtp/crypto/include/err.h

Index: srtp/crypto/include/err.h
diff --git a/srtp/crypto/include/err.h b/srtp/crypto/include/err.h
index 1a6e17018238a888d5d24810a643a6c4e8f491a7..e95c26bc7a69303ed8107bb7c031f625e1cecbee 100644
--- a/srtp/crypto/include/err.h
+++ b/srtp/crypto/include/err.h
@@ -46,7 +46,8 @@
 #ifndef ERR_H
 #define ERR_H
 
-#include "datatypes.h"
+#include <stdio.h>
+#include <stdarg.h>
 
 /**
  * @defgroup Error Error Codes
@@ -87,7 +88,7 @@ typedef enum {
   err_status_nonce_bad    = 18, /**< nonce check failed                      */
   err_status_read_fail    = 19, /**< couldn't read data                      */
   err_status_write_fail   = 20, /**< couldn't write data                     */
-  err_status_parse_err    = 21, /**< error pasring data                      */
+  err_status_parse_err    = 21, /**< error parsing data                      */
   err_status_encode_err   = 22, /**< error encoding data                     */
   err_status_semaphore_err = 23,/**< error while using semaphores            */
   err_status_pfkey_err    = 24  /**< error while using pfkey                 */