EVP_PKEY_get0_provider
const OSSL_PROVIDER *EVP_PKEY_get0_provider(const EVP_PKEY *key);
|| !TEST_ptr_eq(EVP_PKEY_get0_provider(pkey), *curr_provider))
|| !TEST_ptr_eq(EVP_PKEY_get0_provider(pkey), *curr_provider))
|| !TEST_ptr_eq(EVP_PKEY_get0_provider(pkey), *curr_provider))