fix nic attach warning during restore

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>

Author: shwstppr

server/src/main/java/com/cloud/vm/UserVmManagerImpl.java

@@ -8322,6 +8322,10 @@ protected void updateVolumesOwner(final List<VolumeVO> volumes, Account oldAccou
      */
     protected void updateVmNetwork(AssignVMCmd cmd, Account caller, UserVmVO vm, Account newAccount, VirtualMachineTemplate template)
             throws InsufficientCapacityException, ResourceAllocationException {
+        if (cmd.isSkipNetwork()) {
+            logger.trace("Skipping network update for {} as per command parameter.", vm);
+            return;
+        }
 
         logger.trace("Updating network for VM [{}].", vm);