Move flush handles to the end of the tasks

We shouldn't need to restart the services until the ring and keys have
been synced.

This will ensure that we don't have a situation where swift storage
services start (on first deploy) but don't have ring files, and as a
result log errors until the ring files exist.

Change-Id: I57ba7843655c5c9ac8b213bd705fd73e3bae96fa

tasks/main.yml

@@ -107,9 +107,6 @@
   tags:
     - swift-install
 
-- name: Flush handlers
-  meta: flush_handlers
-
 - include: swift_key_setup.yml
   static: no
   when: swift_do_sync | bool
@@ -123,6 +120,9 @@
     - swift-install
     - swift-config
 
+- name: Flush handlers
+  meta: flush_handlers
+
 - include: swift_sync_post_install.yml
   static: no
   when: swift_do_sync | bool