Update the tox configuration to pull in the openstack
upper-constraints.txt when running releasenotes. This will
fix the releasenotes job that is currently failing due to
a new version of sphinx. Additionally this change includes
updates from puppet-modulesync-configs.
Change-Id: I9924e4b554b33cf1a3daba7e9c9f8f8b16b77162
Takashi Kajinami