Test that OSSL_STORE can load various types of params

There have been instances where OSSL_STORE got confused between DSA and
DH params (e.g. see issue #13046) due the DER encoding of DH

Test that OSSL_STORE can load various types of params

There have been instances where OSSL_STORE got confused between DSA and
DH params (e.g. see issue #13046) due the DER encoding of DH and DSA params
looking identical. Therefore we test that we get the types that we expect.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13329)

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