packaging: update RPM spec file to match 5.0 release
packaging: update RPM spec file to match 5.0 release

Building compliant RPM packages for Fedora/RHEL/Centos requires all
dependencies to be satisfied via the distribution specific packaging
infrastructure (i.e. rpm + yum|dnf). To ensure that packages correctly
pull in their dependencies (i.e., without relying on side-loaded
software that just happens to be installed on the host where they're
being built), the best practice recommended is to build them in "mock".
E.g.,
        rpmbuild -bs core.spec
        mock -r fedora-rawhide-x86_64 core-*.src.rpm

This patch modifies the enclosed spec file to correctly list all
other RPM packages required to build and run core-* RPMs.

Note that at the time of this writing the "python-logzero" package
is pending release into the Fedora (26 and newer) repositories:

    https://bugzilla.redhat.com/show_bug.cgi?id=1514100

Signed-off-by: Gabriel Somlo <21ac1e587e9b684f27b1dd7bb0c255340ad5fde8@cert.org>

coreemu/core,coreemu/core,coreemu/core,coreemu/core