Update libsrtp to upstream 1.5.0

srtp/crypto/hash/null_auth.c

 /*
  * null_auth.c
  *
  * implements the do-nothing auth algorithm
  *
  * David A. McGrew
  * Cisco Systems, Inc.
  *
  */
 
@@ skipping 26 matching lines @@
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
+#ifdef HAVE_CONFIG_H
+    #include <config.h>
+#endif
 
 #include "null_auth.h" 
 #include "alloc.h"
 
 /* null_auth uses the auth debug module */
 
 extern debug_module_t mod_auth;
 
 err_status_t
 null_auth_alloc(auth_t **a, int key_len, int out_len) {
@@ skipping 96 matching lines @@
   (auth_compute_func)    null_auth_compute,
   (auth_update_func)     null_auth_update,
   (auth_start_func)      null_auth_start,
   (char *)               null_auth_description,
   (int)                  0,  /* instance count */
   (auth_test_case_t *)   &null_auth_test_case_0,
   (debug_module_t *)     NULL,
   (auth_type_id_t)       NULL_AUTH
 };