The encryption decrypt position can be int or string

The public API said string, internally we treated it as int. In reality
both are used. Let's reflect that in the documented argument type.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

apps/encryption/lib/Crypto/Crypt.php

@@ -459,7 +459,7 @@ class Crypt {
 	 * @param string $passPhrase
 	 * @param string $cipher
 	 * @param int $version
-	 * @param int $position
+	 * @param int|string $position
 	 * @return string
 	 * @throws DecryptionFailedException
 	 */

apps/encryption/lib/Crypto/Encryption.php

@@ -360,7 +360,7 @@ class Encryption implements IEncryptionModule {
 	 * decrypt data
 	 *
 	 * @param string $data you want to decrypt
-	 * @param int $position
+	 * @param int|string $position
 	 * @return string decrypted data
 	 * @throws DecryptionFailedException
 	 */

lib/public/Encryption/IEncryptionModule.php

@@ -102,7 +102,7 @@ interface IEncryptionModule {
 	 * decrypt data
 	 *
 	 * @param string $data you want to decrypt
-	 * @param string $position position of the block we want to decrypt
+	 * @param int|string $position position of the block we want to decrypt
 	 *
 	 * @return mixed decrypted data
 	 *