fix(manila: typo in manila vars (#419)

diff --git a/roles/manila/vars/main.yml b/roles/manila/vars/main.yml
index c6e2cfa..43d1fbb 100644
--- a/roles/manila/vars/main.yml
+++ b/roles/manila/vars/main.yml
@@ -58,7 +58,7 @@
         # NOTE(okozachenko1203): We can remove it once the following is merged:
         #                        https://review.opendev.org/883066
         service_type: sharev2
-      oslo_messaging_no tifications:
+      oslo_messaging_notifications:
         driver: noop
   manifests:
     ingress_api: false