you don't need to, the ``AMI`` and ``AMI_slave`` patches are created by snappy, due to the ``faceType boundary;`` line here:

AMI
{
  level (2 2); // Note: better: levels 3 3
  faceType boundary;
  cellZone rotatingZone;
  faceZone rotatingZone;
  cellZoneInside inside;
}