CLOUDSTACK-5456: Download root volume when vm is in stopped state fails on hyper-v. Made

changes to make sure the volume entry is created in the db with the right image format.

engine/orchestration/src/org/apache/cloudstack/engine/orchestration/VolumeOrchestrator.java

@@ -696,6 +696,8 @@ public class VolumeOrchestrator extends ManagerBase implements VolumeOrchestrati
             return ImageFormat.OVA;
         } else if (hyperType == HypervisorType.Ovm) {
             return ImageFormat.RAW;
+        } else if (hyperType == HypervisorType.Hyperv) {
+            return ImageFormat.VHD;
         } else {
             return null;
         }