add kombu_ssl parameters to notify::rabbitmq

This adds the following parameters:
  * kombu_ssl_ca_certs
  * kombu_ssl_certfile
  * kombu_ssl_keyfile
  * kombu_ssl_version
these are necessary to establish a secure ssl
connection to rabbitmq.

Change-Id: Ia9ea7cf44664f71a4fb5cc76e3474aa54a9bb30d
Merge "add kombu_ssl parameters to notify::rabbitmq"