[Noetic] rtabmap fails to build on armhf

[sloretz]

Hey @matlabbe,

It looks like rtabmap isn't building on some platforms:

• Ubuntu Focal armhf

I'm planning to add all chronically failing packages to per-platform blacklists later this week. That just means the buildfarm won't try to build them every day.

When all issues causing the build failures are resolved, please make a PR to the production branch on ros_buildfarm_config removing it from the package_blacklist:

• release-armhf-build.yaml

[matlabbe]

Yeah, no problem. It is failing because a dependency (libpointmatcher) is not built on armhf. The correct fix would be to do a conditional depends in rtabmap's package.xml based on the platform, but I doudt it is possible to do.