Do not wait for grafana to start when kolla_action=config

Prior to this change it was not possible to generate the config
before deploying the services as you'd hit:

RUNNING HANDLER [Waiting for grafana to start on first node] *************************
Monday 18 January 2021  15:06:35 +0000 (0:00:00.182)       0:04:39.213 ********
skipping: [sv-h22a8-u19]
skipping: [sv-h22a5-u36]
FAILED - RETRYING: Waiting for grafana to start on first node (10 retries left).

This would never succeed as the service has not yet been deployed.

TrivialFix
Change-Id: I9437a049b24e5e613a7e66add481a8983b84867a
(cherry picked from commit 31f97d6)

Author: jovial

ansible/roles/grafana/handlers/main.yml

@@ -32,6 +32,7 @@
   retries: 10
   delay: 2
   when:
+    - kolla_action != "config"
     - inventory_hostname == groups[service.group]|first
 
 - name: Restart remaining grafana containers