Fix 'galera:master' mapping on all ctl nodes

'galera:master' pillar must be present only on ctl01,
but the class 'service.galera.ssl' provides this pillar
on all ctl nodes.

Switch to separate  'service.galera.ssl.{master/slave}'
classes for ctl01 and other nodes.

Change-Id: Ib2edaab3bdfbedc161966bfb02523ab9f5d1fff2
8 files changed