* guix/build-system/asdf.scm (asdf-build)[builder]: Parameterize %lisp-type
and %lisp before invoking the build procedure. Don't pass #:lisp-type as an
argument to said procedure.
* guix/build/asdf-build-system.scm: Adjust accordingly.
(source-install-prefix): Rename to %lisp-source-install-prefix.
* guix/build/lisp-utils.scm: Adjust accordingly.
(%lisp-type): New parameter.
(bundle-install-prefix): Rename to %bundle-install-prefix.
* gnu/packages/lisp.scm: Adjust accordingly.