rebuild for f31/rawhide, including:
use the %{cmake} %global to get all the extra Fedora cmake options.
(This is Fedora, so don't care so much about rhel/rhel7 cmake3.)
reset epoch to 1. Note we use (have been using) epoch=1 in Fedora since
forever. I presume this is so that people can install Ceph RPMs from
ceph.com if they prefer those, which use epoch=2, and not run into issues
when updating.
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>