Fix static scan issue by updating AES cipher mode

Changed AES cipher mode from AES/CBC/PKCS5Padding to AES/CTR/NoPadding.

Author: Dilli-Babu-Godari

presto-main-base/src/main/java/com/facebook/presto/spiller/AesSpillCipher.java

@@ -33,8 +33,8 @@
 final class AesSpillCipher
         implements SpillCipher
 {
-    //  256-bit AES CBC mode
-    private static final String CIPHER_NAME = "AES/CBC/PKCS5Padding";
+    //  256-bit AES CTR mode
+    private static final String CIPHER_NAME = "AES/CTR/NoPadding";
     private static final int KEY_BITS = 256;
 
     private SecretKey key;