Rewrite rules for disc install
Ben Avison authored
BuildSys 7.91 changes how top-level phony rules are overridden.
In this component, the `standalone` target in the `Sources/utils` makefile
is redefined after `AAsmModule` is included, so it will be affected.
Rewrite the rules so that they will continue to work the same (at least for
native builds) both before and after BuildSys is updated.

Version 6.03. Not tagged
6059a9f1