Upgrade check-uc to voting
Upgrade check-uc to voting

They're passing[1] now, and we want to keep them passing from now
on.

1:
http://logs.openstack.org/00/379200/1/check/gate-requirements-tox-py27-check-uc-ubuntu-trusty/614fd85/
http://logs.openstack.org/99/379199/1/check/gate-requirements-tox-py27-check-uc-ubuntu-trusty/f2fe933/
http://logs.openstack.org/77/381877/2/check/gate-requirements-tox-py27-check-uc-ubuntu-xenial/a9bc421/

Depends-On: Ia2cf2c440a72e6365a9ff08086704dc535bbc072
Depends-On: I28e157e633fe306a5939b79e38dd656b9a9ccf0b

Change-Id: Ibd68821fbe023963d1f92d9810446744f7e9d1cf

openstack-infra/project-config,openstack-infra/project-config,Tesora/tesora-project-config,Tesora/tesora-project-config