added logs if device type registration failed

components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/internal/DeviceManagementServiceComponent.java

@@ -272,6 +272,7 @@ public class DeviceManagementServiceComponent {
      * @param deviceManagementService An instance of DeviceManagementService
      */
     protected void setDeviceManagementService(DeviceManagementService deviceManagementService) {
+        try {
             if (log.isDebugEnabled()) {
                 log.debug("Setting Device Management Service Provider: '" +
                                   deviceManagementService.getType() + "'");
@@ -282,6 +283,12 @@ public class DeviceManagementServiceComponent {
                     listener.registerDeviceManagementService(deviceManagementService);
                 }
             }
+            log.info("Device Type deployed successfully : " + deviceManagementService.getType() + " for tenant "
+                             + deviceManagementService.getProvisioningConfig().getProviderTenantDomain());
+        } catch (Throwable e) {
+            log.error("Failed to register device management service for device type" + deviceManagementService.getType() +
+                            " for tenant " + deviceManagementService.getProvisioningConfig().getProviderTenantDomain(), e);
+        }
     }
 
     /**