Fix migration of VM with volume on Ubuntu (#6116)

* Fix migration of VM with volume on Ubuntu

* address comment

Author: Pearl1594

engine/storage/datamotion/src/main/java/org/apache/cloudstack/storage/motion/KvmNonManagedStorageDataMotionStrategy.java

@@ -82,10 +82,12 @@ public class KvmNonManagedStorageDataMotionStrategy extends StorageSystemDataMot
      */
     @Override
     protected StrategyPriority internalCanHandle(Map<VolumeInfo, DataStore> volumeMap, Host srcHost, Host destHost) {
-        if (super.internalCanHandle(volumeMap, srcHost, destHost) != StrategyPriority.CANT_HANDLE
-                || canHandleKVMNonManagedLiveNFSStorageMigration(volumeMap, srcHost, destHost) != StrategyPriority.CANT_HANDLE) {
+        if (super.internalCanHandle(volumeMap, srcHost, destHost) != StrategyPriority.CANT_HANDLE) {
             return StrategyPriority.CANT_HANDLE;
         }
+        if (canHandleKVMNonManagedLiveNFSStorageMigration(volumeMap, srcHost, destHost) != StrategyPriority.CANT_HANDLE) {
+            return StrategyPriority.HYPERVISOR;
+        }
 
         Set<VolumeInfo> volumeInfoSet = volumeMap.keySet();
         for (VolumeInfo volumeInfo : volumeInfoSet) {