More timesync tries after snapshot is reverted
More timesync tries after snapshot is reverted

Currently only 3 tries are performed with 30 sec timeout,
but it is not enough in certain situations for time sync.

Change-Id: I460f86ebbf59f32c9288889eb76bdc9a472d4a07
Closes-Bug: #1388212

ddepaoli3/fuel-main-dev,SergK/fuel-main,SmartInfrastructures/fuel-main-dev,eayunstack/fuel-main,stackforge/fuel-main,Fiware/ops.Fuel-main-dev,huntxu/fuel-main,zhaochao/fuel-main,teselkin/fuel-main,dancn/fuel-main-dev,dancn/fuel-main-dev,Fiware/ops.Fuel-main-dev,SergK/fuel-main,teselkin/fuel-main,SmartInfrastructures/fuel-main-dev,zhaochao/fuel-main,stackforge/fuel-main,zhaochao/fuel-main,teselkin/fuel-main,huntxu/fuel-main,ddepaoli3/fuel-main-dev,SergK/fuel-main,AnselZhangGit/fuel-main,zhaochao/fuel-main,zhaochao/fuel-main,AnselZhangGit/fuel-main,SmartInfrastructures/fuel-main-dev,ddepaoli3/fuel-main-dev,ddepaoli3/fuel-main-dev,dancn/fuel-main-dev,Fiware/ops.Fuel-main-dev,huntxu/fuel-main,AnselZhangGit/fuel-main,eayunstack/fuel-main,dancn/fuel-main-dev,Fiware/ops.Fuel-main-dev,teselkin/fuel-main,stackforge/fuel-main,SmartInfrastructures/fuel-main-dev,AnselZhangGit/fuel-main,eayunstack/fuel-main