Source-only upload and build profiles

[Pirate Praveen <praveen@onenetbeyond.org>]

Hi,
I tried uploading node-webpack with DEB_BUILD_PROFILES=nocheck sbuild 
-s --source-only-changes

https://tracker.debian.org/news/1094664/accepted-node-webpack-4300-2-source-into-experimental/

But it seems the buildd did not consider Built-For-Profiles: nocheck in 
the source.changes file. I think I will have to do a binary included 
upload, but it'd be nice if buildd can support build profiles.

This is required because node-uglifyjs-webpack-plugin has dependency on 
webpack (it actually requires files from webpack).

Thanks
Praveen