Wrong variable name for spicehtml5proxy

Reconfigure was hard broken with spiceproxy

Change-Id: I80b5fcc16bcc0b090807843f7a59f0ae9ea27aec
Closes-Bug: #1560175

ansible/roles/nova/tasks/do_reconfigure.yml

@@ -151,7 +151,7 @@
   kolla_docker:
     name: nova_spicehtml5proxy
     action: "get_container_env"
-  register: nova_spicehtml5proxy
+  register: nova_spicehtml5proxy_container_env
   when:
     - nova_console == 'spice'
     - inventory_hostname in groups['nova-spicehtml5proxy']