libffado.src requires dbus-c++-devel which requires libdbus-c++-ecore-1.so.0 (provided by dbus-c++-ecore) which requires libecore.so.1 (provided by efl)..
Apparently, efl has ExcludeArch: s390x ppc64
Please fix it ASAP.
This is fixed now in rawhide, thanks to Dan Horak.
for the record I posted the fix upstream in https://phab.enlightenment.org/D5158 - hope it's the right process