Change retry and delay for ntpd
Change retry and delay for ntpd

At the moment the task synchronizes the time with clock server.
Its TTL is 258 second. It also has 2 A records. When 1 IP is down or
overloaded there is a high chance to get another A records by DNS round
robin when TTL is expired and get a result from another NTP server. This
patch sets retry and delay in accordance of TTL of clock server.
to increase a chance of getting different IP and positive result when
ntp server is down or overloaded.

Change-Id: Ieee2dd8c0b51280f9a375751849c9d73341202ee

redhat-openstack/infrared,redhat-openstack/infrared,redhat-openstack/infrared