Please give back prometheus on armhf

[Martín Ferrari <tincho@debian.org>]

Hi,

Prometheus 1.5.0+ds-1 has failed to build on armhf, I suspect due to a
very busy machine (the tests timed out), and I did not reproduce this
problem in the porter box. Can you please give it back?

Thanks

-- 
Martín Ferrari (Tincho)