Fix build error with MigrateKVMAsync

Author: weizhouapache

plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/MigrateKVMAsync.java

@@ -22,7 +22,8 @@
 import java.util.Set;
 import java.util.concurrent.Callable;
 
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.libvirt.Connect;
 import org.libvirt.Domain;
 import org.libvirt.LibvirtException;
@@ -31,7 +32,7 @@
 import org.libvirt.TypedUlongParameter;
 
 public class MigrateKVMAsync implements Callable<Domain> {
-    protected Logger logger = Logger.getLogger(getClass());
+    protected Logger logger = LogManager.getLogger(getClass());
 
     private final LibvirtComputingResource libvirtComputingResource;