RBAC tests for extended availability zone policies

This commit adds RBAC tests for extended availability zone
policies, the documentation for which can be found here:

https://github.com/openstack/nova/blob/master/nova/policies/extended_availability_zone.py

Tests for both APIs that enforce each policy were added.

Change-Id: I36aad1ea7ef3c1418cd23fda8357132ac8bde559
Depends-On: I1c14646dc8d102cd093be09833c23846781e5e73
diff --git a/releasenotes/notes/extended-availability-zone-policies-2ec19e8bbb9ce158.yaml b/releasenotes/notes/extended-availability-zone-policies-2ec19e8bbb9ce158.yaml
new file mode 100644
index 0000000..a796946
--- /dev/null
+++ b/releasenotes/notes/extended-availability-zone-policies-2ec19e8bbb9ce158.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add RBAC tests for APIs that enforce
+    "os_compute_api:os-extended-availability-zone".