utils/sdp: fixes includes

compile failed on arm64 macOS 12&13

src/utils/sdp.c

@@ -48,12 +48,18 @@
  */
 
 #include <assert.h>
+#include <errno.h>
 #include <pthread.h>
 #include <stdint.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #ifdef _WIN32
 #include <winsock2.h>
 #include <ws2tcpip.h>
+#else
+#include <netdb.h>
+#include <sys/socket.h>
 #endif
 
 #include "audio/types.h"