Update _3gpp-common-subscription-control.yang

      Solution Set (SS) definitions

      3GPP TS 28.623";

  revision 2024-08-09 { reference CR-0428; } 

  revision 2023-09-17 { reference CR-0270 ; } 

  revision 2023-08-11 { reference "CR-0259"; }

  revision 2022-10-31 { reference CR-0195;   }

        address.

        When a MnS consumer does not wish to receive notifications any more 

        the MnS consumer shall delete the corresponding NtfSubscriptionControl 

        instance.

        Creation and deletion of NtfSubscriptionControl instances by MnS 

        consumers is optional; when not supported, the NtfSubscriptionControl 

        instances may be created and deleted by the system or be

        pre-installed.";

        instance.";

      key id;

      uses top3gpp:Top_Grp;

          non zero value to a zero value stops emitting heartbeats immediately;

          no final heartbeat notification is sent.

          Creation and deletion of HeartbeatControl instances by MnS Consumers

          is optional; when not supported, the HeartbeatControl instances may be

          created and deleted by the system or be pre-installed. 

          Whether and when to emit heartbeat notifications is controlled by

          HeartbeatControl. Subscription for heartbeat is not supported via the

          NtfSubscriptionControl.";