Added valid XR values for afi.
Added valid XR values for afi.
cisco/cisco-network-puppet-module,mikewiebe/cisco-network-puppet-module,mikewiebe/cisco-network-puppet-module,mikewiebe/cisco-network-puppet-module,mikewiebe/cisco-network-puppet-module,cisco/cisco-network-puppet-module,cisco/cisco-network-puppet-module,cisco/cisco-network-puppet-module