build.info: Add the possibility to add dependencies on raw targets

build.info: Add the possibility to add dependencies on raw targets

We need to add something for the 'tests' target to depend on, so a
special syntax for those is introduced:

    DEPEND[|tests|]=fipsmodule.cnf

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14320)