add missing header files to fix compilation

closes #457

Change-Id: Iaa26da810fa11adb970ae25409ade4ad29712200

daemon/codec.c

@@ -1,6 +1,8 @@
 #include "codec.h"
 #include <glib.h>
 #include <assert.h>
+#include <inttypes.h>
+#include <sys/types.h>
 #include "call.h"
 #include "log.h"
 #include "rtplib.h"