Fix for [#28672] Blender segfault after exiting a game that was opened with autoplay on (Blender, not blenderplayer)

Autoplay misses uninitialisation, I'm just fixing the reported crash, it still misses all other frees, but as the program exits, we don't care?

source/blender/windowmanager/intern/wm_init_exit.c

@@ -296,6 +296,8 @@ int WM_init_game(bContext *C)
 
 		WM_operator_name_call(C, "VIEW3D_OT_game_start", WM_OP_EXEC_DEFAULT, NULL);
 
+		sound_exit();
+
 		return 1;
 	}
 	else