Update _3gpp-common-filemanagement.yang

    description "Provides specialisations of the ProcessMonitor datatype.";

    uses yang3gpp:ProcessMonitor {

          refine resultStateInfo {

           description "If status is FAILED this provides the reason.";

           must "true() = 'NULL'

           or 'UNKNOWN'

           or 'NO_STORAGE'

           or 'LOW_MEMORY'

           or 'NO_CONNECTION_TO_REMOTE_SERVER'

           or 'FILE_NOT_AVAILABLE'

           or 'DNS_CANNOT_BE_RESOLVED'

           or 'TIMER_EXPIRED'

           or 'OTHER'";

            description "If status is FAILED resultStateInfo will be one of

               the following.";

               must '. ../status= "FAILED" or

               or . = "UNKNOWN"

               or . = "NO_STORAGE"

               or . = "LOW_MEMORY"

               or . = "NO_CONNECTION_TO_REMOTE_SERVER"

               or . = "FILE_NOT_AVAILABLE"

               or . = "DNS_CANNOT_BE_RESOLVED"

               or . = "TIMER_EXPIRED"

               or . = "OTHER"';

               }

           refine status {

           description "Limits to status applicable for file download.";

           must "false() = 'PARTIALLY_FAILED'";

             description "Status must not be 'PARTIALLY_FAILED'.";

             must '. != "PARTIALLY_FAILED" ';

          }

    }

  }