Translations: add in the locale directory
Translations: add in the locale directory

The commit a398e1f33abd4eb09cd01032a4720517342d0a1a did not create
the locale directory. This prevent the translation jobs from
running.

Change-Id: I99809433dad6b78bdfb7ccf23312284510d5ff40

openstack/neutron-fwaas,openstack/neutron-fwaas