Do not build python2 package for rhel >= 8 distros
Do not build python2 package for rhel >= 8 distros

Signed-off-by: Athos Ribeiro <9cdfc39bfa10853bf9ad64090808d55fee7504ca@redhat.com>

DBuildService/dockerfile-parse,jpopelka/dockerfile-parse,DBuildService/dockerfile-parse,jpopelka/dockerfile-parse