Force base-test to upload only to rax-iad and rax-dfw

These were disabled due to service issues. Independent testing seems to
indicate that things are happy again. Set up base-test to upload only to
these to regions to confirm. We'll reset base and base-test jobs to the
full set of upload targets if this goes well.

Change-Id: I90141b8f666101fabbcc0b820b370fe20af73632

playbooks/base-test/post-logs.yaml

@@ -12,11 +12,11 @@
       set_fact:
         _swift_provider_name: "{{ opendev_base_item }}"
       with_random_choice:
-        - 'ovh_bhs'
-        - 'ovh_gra'
+        #- 'ovh_bhs'
+        #- 'ovh_gra'
         - 'rax_dfw'
         - 'rax_iad'
-        - 'rax_ord'
+        #- 'rax_ord'
       loop_control:
         loop_var: 'opendev_base_item'
     - name: Upload swift logs to {{ _swift_provider_name }}