cta-admin dr ls should only show reservation for retrieve mounts

xroot_plugins/XrdCtaDriveLs.hpp

@@ -127,10 +127,11 @@ int DriveLsStream::fillBuffer(XrdSsiPb::OStreamBuffer<Data> *streambuf) {
     dr_item->set_raw_library_slot(dr.rawLibrarySlot ? dr.rawLibrarySlot.value() : "");
     dr_item->set_comment(dr.userComment ? dr.userComment.value() : "");
     dr_item->set_reason(dr.reasonUpDown ? dr.reasonUpDown.value() : "");
-    dr_item->set_disk_system_name(dr.diskSystemName);
-    dr_item->set_reserved_bytes(dr.reservedBytes);
+    if (dr.mountType == cta::common::dataStructures::MountType::Retrieve) {
+      dr_item->set_disk_system_name(dr.diskSystemName);
+      dr_item->set_reserved_bytes(dr.reservedBytes);
+    }
     dr_item->set_session_elapsed_time(dr.sessionElapsedTime ? dr.sessionElapsedTime.value() : 0);
-
     auto driveConfig = dr_item->mutable_drive_config();
 
     for (const auto& storedDriveConfig : m_tapeDrivesConfigs) {