##### SUMMARY
This feature would implement a SetManagerNic command for the Manager category of redfish_config, to update Manager NIC configuration. 

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
redfish_config

##### ADDITIONAL INFORMATION
This command would help user to configure their Manager NIC.
response = self.get_request(self.root_uri + self.service_root)
        if response['ret'] is False:
            return response
        data = response['data']
        if 'UpdateService' not in data:
            return {'ret': False, 'msg': "UpdateService resource not found"}
        else:
            update = data["UpdateService"]["@odata.id"]
            self.update_uri = update
            response = self.get_request(self.root_uri + update)
            if response['ret'] is False:
                return response
            data = response['data']
            self.firmware_uri = self.software_uri = None
            if 'FirmwareInventory' in data:
                self.firmware_uri = data['FirmwareInventory'][u'@odata.id']
            if 'SoftwareInventory' in data:
                self.software_uri = data['SoftwareInventory'][u'@odata.id']
            return {'ret': True}
    def _find_chassis_resource(self):