Fix ACLs for dual stack (#97)

Author: Pearl1594

plugins/network-elements/netris/src/main/java/org/apache/cloudstack/service/NetrisServiceImpl.java

@@ -412,12 +412,12 @@ public boolean addFirewallRules(Network network, List<NetrisNetworkRule> firewal
             if (FirewallRule.TrafficType.Ingress.name().equalsIgnoreCase(trafficType)) {
                 sourcePrefix = sourceCidr;
                 destinationPrefix = NetUtils.isValidIp4Cidr(sourcePrefix) ||
-                        (Objects.isNull(network.getIp6Cidr()) && NetUtils.ANY_PROTO.equalsIgnoreCase(sourceCidr)) ?
+                        NetUtils.ANY_PROTO.equalsIgnoreCase(sourceCidr) ?
                         network.getCidr() : network.getIp6Cidr();
             } else {
                 destinationPrefix = sourceCidr;
                 sourcePrefix = NetUtils.isValidIp4Cidr(destinationPrefix) ||
-                        (Objects.isNull(network.getIp6Cidr()) && NetUtils.ANY_PROTO.equalsIgnoreCase(sourceCidr)) ?
+                        NetUtils.ANY_PROTO.equalsIgnoreCase(sourceCidr) ?
                         network.getCidr() : network.getIp6Cidr();
             }
             String srcPort;