Fix enrolling exception in raspberry pi device type

modules/samples/raspberrypi/src/org.wso2.carbon.device.mgt.iot.sample.raspberrypi.service.impl/src/main/java/org/wso2/carbon/device/mgt/iot/sample/raspberrypi/service/impl/RaspberrypiManagerService.java

@@ -79,6 +79,7 @@ public class RaspberrypiManagerService {
 			device.setName(name);
 			device.setType(RaspberrypiConstants.DEVICE_TYPE);
 			enrolmentInfo.setOwner(owner);
+			device.setEnrolmentInfo(enrolmentInfo);
 			boolean added = deviceManagement.getDeviceManagementService().enrollDevice(device);
 			if (added) {
 				response.setStatus(Response.Status.OK.getStatusCode());