Add `inbound-max-sessions` config

geant/gap_ansible/roles/base_config/templates/routers/nokia/general.j2

@@ -17,6 +17,9 @@
         <pre-login-message>
             <message alu:operation="replace">{{ nokia_pre_login_msg }}</message>
         </pre-login-message>
+        <ssh>
+            <inbound-max-sessions>{{ nokia_ssh_config.inbound_max_sess }}</inbound-max-sessions>
+        </ssh>
     </login-control>
     <management-interface alu:operation="replace">
         <configuration-mode>model-driven</configuration-mode>