File _patchinfo of Package patchinfo.21976

<patchinfo incident="21976">
  <packager>fbui</packager>
  <rating>low</rating>
  <category>recommended</category>
  <summary>Recommended update for systemd-rpm-macros</summary>
  <description>This update for systemd-rpm-macros fixes the following issues:

- Introduce rpm macro %_systemd_util_dir
</description>
</patchinfo>