update nova in puppetfile
update nova in puppetfile

it needs to point to a specific branch until
    https://review.openstack.org/#/c/45483/

is merged

CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder,CiscoSystems/puppet_openstack_builder,michaeltchapman/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder--to-be-deleted,CiscoSystems/puppet_openstack_builder,CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder,CiscoSystems/puppet_openstack_builder--to-be-deleted,phchoic/puppet_openstack_builder,CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder,michaeltchapman/puppet_openstack_builder,michaeltchapman/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder--to-be-deleted,michaeltchapman/vagrant-consul,michaeltchapman/vagrant-consul,phchoic/puppet_openstack_builder,phchoic/puppet_openstack_builder