fix CloudRuntimeException in volume stats for migrated volume

When you migrate volume between data stores CS keeps the original UUID and changes the path of the volume.
When volume is not found by the given path the agent throws CloudRuntimeException but it's not catched in LibvirtGetVolumeStatsCommandWrapper.java

Author: slavkap

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

@@ -33,6 +33,7 @@
 import com.cloud.resource.CommandWrapper;
 import com.cloud.resource.ResourceWrapper;
 import com.cloud.storage.Storage.StoragePoolType;
+import com.cloud.utils.exception.CloudRuntimeException;
 import com.cloud.agent.api.GetVolumeStatsAnswer;
 import com.cloud.agent.api.GetVolumeStatsCommand;
 import com.cloud.agent.api.VolumeStatsEntry;
@@ -52,7 +53,7 @@ public Answer execute(final GetVolumeStatsCommand cmd, final LibvirtComputingRes
                 statEntry.put(volumeUuid, getVolumeStat(libvirtComputingResource, conn, volumeUuid, storeUuid, poolType));
             }
             return new GetVolumeStatsAnswer(cmd, "", statEntry);
-        } catch (LibvirtException e) {
+        } catch (LibvirtException | CloudRuntimeException e) {
             return new GetVolumeStatsAnswer(cmd, "Can't get vm disk stats: " + e.getMessage(), null);
         }
     }