crosstool-ng-1.24.0-bp156.3.6

- Update to version 1.24.0:
  * An upgrade procedure for configurations created in the previous
    release of crosstool-NG has been introduced with this release.
    See http://crosstool-ng.github.io/docs/configuration/ for more
    details.
- Add new build dependency: unzip.
- Remove reproducible.patch: Fixed upstream.
- Add crosstool-ng.keyring to verify tarball signature.
- Add crosstool-ng.rpmlintrc to ignore some irrelevant rpmlint
  errors.

- Update to version 1.23.0
  * No changelog available
  * Drop upstream crosstool-ng-gperf-fix.patch

- Add patch (crosstool-ng-gperf-fix.patch) to fix build
  with gpref version >= 3.1, based on upstream commit
  https://github.com/crosstool-ng/crosstool-ng/commit/3bb2bcd2a328fb56332398783e91899ce3bc3556

- Add reproducible.patch to fix build-compare

- Update to version 1.22.0
  * No changelog available
  * Drop obsolete crosstool-ng-gcc5.patch

- Fix build with GCC5
  * crosstool-ng-gcc5.patch

- Update to version 1.21.0
  * No changelog available

- Add patches licenses
- Delete patches with problematic licenses

- Initial package, version 1.20.0