aesni_set_enckey
void aesni_set_enckey(const uint8_t *userkey, uint8_t *encrypt_schedule,
aesni_set_enckey(keydata, ctx->enc_schedule, rounds);
aesni_set_enckey(keydata, ctx->enc_schedule, rounds);
aesni_set_enckey(keydata + (keylen_in_bytes / 2), ctx->xts_schedule,