This uses a FIPS indicator.
Since DSA KeyGen is only useful for DSA signing,
it reuses the DSA signing FIPS configuration option and settable ctx name.
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24978)