Add Periodic Translation Updates to ops-guide

Periodic translation updates already run on openstack-manuals,
and should have been added to the layout for operations-guide
when it was created. This patch fixes the omission, and also
fixes the ommision of the upstream-translation-update job.

Change-Id: I0ed55ef57928fe89461741a10fb5d0624c3332b6
Merge "Add Periodic Translation Updates to ops-guide"