systemvm: use TLS v1.2 by default (#14)

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Author: rohityadavcloud

utils/src/main/java/org/apache/cloudstack/utils/security/SSLUtils.java

@@ -49,10 +49,10 @@ public static String[] getSupportedCiphers() throws NoSuchAlgorithmException {
     }
 
     public static SSLContext getSSLContext() throws NoSuchAlgorithmException {
-        return SSLContext.getInstance("TLSv1");
+        return SSLContext.getInstance("TLSv1.2");
     }
 
     public static SSLContext getSSLContext(String provider) throws NoSuchAlgorithmException, NoSuchProviderException {
-        return SSLContext.getInstance("TLSv1", provider);
+        return SSLContext.getInstance("TLSv1.2", provider);
     }
 }