crypto_unregister_rngs
crypto_unregister_rngs(drbg_algs, (ARRAY_SIZE(drbg_cores) * 2));
crypto_unregister_rngs(algs, i);
EXPORT_SYMBOL_GPL(crypto_unregister_rngs);
void crypto_unregister_rngs(struct rng_alg *algs, int count);