Setup 'cluster_ip' fact for infra host in 'chrony' role tests

This patch sets up a missing 'cluster_ip' fact for
infrastructure host without which 'server' directive was
set up improperly in chrony.conf on 'node' host.

Change-Id: I3d98788b7eb54bf984d165a50072f51fd85c08fb
Issue-ID: OOM-1810
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
1 file changed