libcrypto: Remove AES_ctr128_encrypt()

This is for OpenSSL 1.1.0.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>

src/libcrypto.c

@@ -587,7 +587,11 @@ static void aes_ctr_encrypt(struct ssh_cipher_struct *cipher, void *in, void *ou
    * Same for num, which is being used to store the current offset in blocksize in CTR
    * function.
    */
+# if OPENSSL_VERSION_NUMBER >= 0x10100000L
+  CRYPTO_ctr128_encrypt(in, out, len, &cipher->aes_key->key, cipher->aes_key->IV, tmp_buffer, &num, (block128_f)AES_encrypt);
+# else
   AES_ctr128_encrypt(in, out, len, &cipher->aes_key->key, cipher->aes_key->IV, tmp_buffer, &num);
+# endif /* OPENSSL_VERSION_NUMBER >= 0x10100000L */
 }
 
 static void aes_ctr_cleanup(struct ssh_cipher_struct *cipher){