copr's ppc64le builders fail to start

Hi all,

for some reason (not yet known, tracked in fedora infra [1]) ppc64le
builders fail to spawn, and what is even worse this issue also affects x86
builders. So because of this, we temporarily disabled ppc64le
architecture in copr. It means that the ppc64le builds will be processed
later once we enable it again; if you can't afford waiting (hours or
maybe days) please temporarily disable ppc64le chroots in your copr

[1] <a href="" title=""></a>

Sorry for inconvenience,