File _patchinfo of Package patchinfo.21370

<patchinfo incident="21370">
  <packager>rguenther</packager>
<issue tracker="jsc" id="SLE-20049"/>
  <rating>moderate</rating>
  <category>recommended</category>
  <summary>Recommended update for gcc7</summary>
  <description>

This update for gcc7 fixes the following issues:

- Fixed a build issue when built with recent kernel headers.
- Backport the "-fpatchable-function-entry" feature from newer GCC. (jsc#SLE-20049)
- do not handle exceptions in std::thread (jsc#CAR-1182)

</description>
</patchinfo>