Glance policy copy is not using correct name

This is currently using the full path for the destination
which doesn't appear to be what is wanted; instead the
actual file name should be used.

Closes-Bug: 1757532

Change-Id: If85e98097a0d0e0b55d0b2993185c8591e6dd10e

ansible/roles/glance/tasks/config.yml

@@ -97,7 +97,7 @@
 - name: Copying over existing policy file
   template:
     src: "{{ glance_policy_file_path }}"
-    dest: "{{ node_config_directory }}/{{ item.key }}/{{ glance_policy_file_path }}"
+    dest: "{{ node_config_directory }}/{{ item.key }}/{{ glance_policy_file }}"
     mode: "0660"
   become: true
   register: glance_policy_overwriting