Add {lib}_R_{lib}_LIB, for our engines and other "external" modules

Add {lib}_R_{lib}_LIB, for our engines and other "external" modules

Engines lacked the possibility to refer to themselves in this form:

    WHATEVERerr(WHATEVER_F_SOMETHING, WHATEVER_R_WHATEVER_LIB);

This little change makes that possible, and gets used in e_capi.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19301)