startup servicectrl添加update

Signed-off-by: Njackd320 <jack.dai@huawei.com>

services/etc/group

@@ -29,7 +29,7 @@ shared_relro:x:1037:
 audio:x:1041:
 cameraserver:x:1047:
 uiserver:x:1048:
-servicectrl:x:1050:root,shell,system,samgr,hdf_devmgr,foundation
+servicectrl:x:1050:root,shell,system,samgr,hdf_devmgr,foundation,update
 powerctrl:x:1051:root,shell,system,update,power_host,charger,foundation
 bootctrl:x:1052:root,shell,system
 deviceprivate:x:1053:root,shell,system,samgr,hdf_devmgr,deviceinfo,dsoftbus,dms,account,useriam,access_token,device_manager,foundation,dbms,deviceauth,huks_server,dlp_credential,dsserver,edm,update