Revert "swap the loading order for config.cfg and fixed.cfg."

This reverts commit 35bfcea296907055fcd35493cde675669cb96681.
change the reading order of config.cfg and fixed.cfg on Android.

when theme maker repackage the apk with their theme using fixed.cfg, the script for theme will become unchangeable.
this is a quick hack to make themes swapable again.