- Fix memory leak in DMA sound after S_Shutdown()

- Make codec load use temp hunk memory instead of zone mem
- Fix sound issues with direct sound and game_restart (#4526)

code/client/snd_codec_ogg.c

@@ -450,7 +450,7 @@ void *S_OGG_CodecLoad(const char *filename, snd_info_t *info)
 
 	// allocate a buffer
 	// this buffer must be free-ed by the caller of this function
-    	buffer = Z_Malloc(info->size);
+    	buffer = Hunk_AllocateTempMemory(info->size);
 	if(!buffer)
 	{
 		S_OGG_CodecCloseStream(stream);
@@ -464,7 +464,7 @@ void *S_OGG_CodecLoad(const char *filename, snd_info_t *info)
 	// we don't even have read a single byte
 	if(bytesRead <= 0)
 	{
-		Z_Free(buffer);
+		Hunk_FreeTempMemory(buffer);
 		S_OGG_CodecCloseStream(stream);
 
 		return NULL;