849ffec Add module-build-macros to platform buildroots

Authored and Committed by csomh 5 years ago
    Add module-build-macros to platform buildroots
    
    Koji builds done for a module have to have this in order to set the
    correct %dist tag, for example.
    
    Signed-off-by: Hunor Csomortáni <csomh@redhat.com>