[PATCH v3 0/2] imagebuilder, sdk: unset BINARY_FOLDER and DOWNLOAD_FOLDER in final archives

[Sven Roederer]

Using the BINARY_FOLDER or DOWNLOAD_FOLDER options make them escape from the 
build-system to the system the archives run later.
As the build-time path will usually not work on the other system, restore the 
intree defaults.