fix: handle interface api call in svm rest/zapi

[Hardikl]

[rahulguptajss]

Could you verify all of these endpoints. I see another endpoint error api/protocols/san/iscsi/credentials with infinity

2023-04-07T23:13:45+05:30 WRN rest/rest.go:463 > This instance is already processed. instKey is not unique Poller=Infinity collector=Rest:SVM instKey=rydeenSvmIscsi

[rahulguptajss]

moving to draft as this needs more changes.

[Hardikl]

Checking all the endpoint calls if it's svm scoped or not and if it's not then changing accordingly.

[Hardikl]

SVM api call investigation

1. nsswitch
   nameservice-nsswitch-get-iter
   api/svm/svms
   svm scoped

2. ciphers
   security-ssh-get-iter
   api/security/ssh/svms
   svm scoped

3. cifs protocol
   cifs-security-get-iter
   cifs-server-get-iter
   api/protocols/cifs/services
   svm scoped - less data

4. nfs protocol
   nfs-service-get-iter
   api/protocols/nfs/services
   svm scoped - less data

5. audit
   fileservice-audit-config-get-iter
   api/protocols/audit
   svm scoped - less data

6. fpolicy
   fpolicy-policy-status-get-iter
   api/protocols/fpolicy
   not a svm scoped --> Handled in plugin

7. nis
   nis-get-iter
   api/name-services/nis
   svm scoped - less data

8. ldap
   ldap-client-get-iter
   api/name-services/ldap
   svm scoped

9. credentials
   iscsi-initiator-auth-get-iter
   api/protocols/san/iscsi/credentials
   not a svm scoped --> Handled in plugin. --> grafana dashboard changes

10. iscsi service
    iscsi-service-get-iter
    api/protocols/san/iscsi/services
    not a svm scoped --> Handled in plugin

11. cifs ntlm enabled
    cifs-security-get-iter
    api/private/cli/vserver/cifs/server/security
    svm scoped