Openstackid Mysql connection Hiera variables

Add two puppet hiera variables to override defaults for
openstackid-dev in site.pp to access remote user profile database
(mysql_user, db_name). Now we can use the following
mysql parameters for connection:
- openstackid_dev_ss_mysql_host: mysql host
- openstackid_dev_ss_mysql_password: password for mysql account
- openstackid_dev_ss_mysql_user: user name of mysql account
- openstackid_dev_ss_db_name: database name

Change-Id: Ied0e3918d117c13ef53763461242e5380f0bab00
Merge "Openstackid Mysql connection Hiera variables"