Re-enable requirement vote tests

Re-enable the requirement vote layout tests that ensure a specific
vote has been placed.

Change-Id: Ie4b394ff0dc3cc727b1ced6d7abfdeed8efee163
diff --git a/tests/fixtures/config/requirements/vote1/main.yaml b/tests/fixtures/config/requirements/vote1/main.yaml
new file mode 100644
index 0000000..a22ed5c
--- /dev/null
+++ b/tests/fixtures/config/requirements/vote1/main.yaml
@@ -0,0 +1,6 @@
+- tenant:
+    name: tenant-one
+    source:
+      gerrit:
+        config-repos:
+          - common-config