Fix .spec.configurations.sgBackupConfig description in CRD
Current description say that the sgBackupConfig configuration will be created if not specified. But that particular field is optional so if not specified no default configuration will be created.
![image](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==)