Add redis password parameter

Redis server API is not protected with a password
by default.
To fix this issue we need to provide a way to
configure redis with authentification in salt-formula.
This patch addresses the problem for redis used
by contrail analytics.

Co-Authored-By Inessa Vasilevskaya <ivasilevskaya@mirantis.com>

Change-Id: Ia927d5995c2d223b81ed3f3d2a9b389d0a1f021b
Related-Prod: PROD-22096
10 files changed